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接上电池,用一个按钮把rst和gnd接上,按一下按钮就会自动开机发送请求,然后进入深度睡眠,可用于低功耗的物联网开关触发器(如需使用自动唤醒,还要将gpio16接到rst)! B6 U* l J: ^6 w; r9 S
- #include <ESP8266HTTPClient.h>
' N# J- u& B$ |5 B! X - #include <ESP8266WiFi.h>
9 j* K- _# |! S$ c6 y) I( R% `* C9 w9 R - #include <ESP8266WiFiMulti.h>4 ^+ D5 s' B+ f2 t, Z. B7 h
- #include <ESP8266WebServer.h>
9 x, G3 D. p: ~3 s/ U0 s; w - #include <arduino.h>
! a N; T& b: E! h) h4 m. e) o7 F: } - ESP8266WiFiMulti WiFiMulti;6 @9 J2 E% Y# y9 ~& ?, S
- ESP8266WebServer server(80);3 A1 U1 j4 m5 f) o
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";4 g9 T& W1 J, h; |1 Z2 ]
- ADC_MODE(ADC_VCC);4 ~7 w" e* r' o2 L& i: k0 O
- void setup() {
/ o! i! t, O, _ - Serial.begin(115200);& ?; q( R+ f, B: C. Y" u8 c
- Serial.print("\r\n\n");
) s) J; X$ b1 B3 s - pinMode(2,OUTPUT);
r) j/ P ?" J A% m - // WIFI
" w2 F4 {; n& E5 S' j! X - WiFi.mode(WIFI_STA);0 B% r/ e% s9 U+ P G
- WiFi.hostname("Sparkle");
" o+ {" \) G) q' ~ - WiFiMulti.addAP("wifi ssid", "wifi password");9 }; N* f! g" U& `4 O. w: L+ F; d0 G
- int tryNum = 15;
6 B" ^9 q5 x8 I) J) R - Serial.print("Connect WiFi");
* q9 |) B9 n6 I) p - while (WiFiMulti.run() != WL_CONNECTED) {! K2 [$ H* Z1 |% S3 |
- digitalWrite(2,0);
, k# g. J. P# ]. M$ l6 g. a2 v - delay(200);; g5 O& G. d* {+ s4 ?- t) L' Y
- digitalWrite(2,1);
! }! U5 B- o& t/ O( T$ H* X - delay(300);
' A8 W$ m% h/ t% | - Serial.print(".");' h' b$ z4 E/ `3 {1 k
- tryNum--;; Q' B0 U; }7 \" v" V
- if (tryNum == 0) {- p1 w9 m# |( |+ M6 v
- // 1min/ I5 D u9 C2 W
- // ESP.deepSleep(60e6);
4 n6 f& `0 @% P, m6 H( U - ESP.deepSleep(0);8 n5 A( C7 ]! Z( z
- }
4 B& [5 o8 W P/ ?" Z ] - }8 P# M3 b3 d. Z* O# {5 W: g
- Serial.print("\r\n");
' n+ R3 n$ c- v1 @ - digitalWrite(2,1);6 E8 o; s0 P( p: M
- Serial.print("IP address : ");
% W1 C" u) K, I. T, [ - Serial.println(WiFi.localIP());" z, a- Q$ `& d Q% W
- server.on("/", HTTP_GET, [](){
$ H4 p W+ T& [5 Z% A8 b8 e - server.sendHeader("Connection", "close"); H' C7 w n: M4 K0 D
- server.send(200, "text/html", serverIndex);
9 w. Q: I! M3 Y( M6 W: I - });8 M1 Z3 Z, P5 q( }1 E
- server.on("/update", HTTP_POST, [](){
: ] Q. m1 y( F6 t2 w" P3 H% N - server.sendHeader("Connection", "close");
9 ^5 I( e6 t' Z0 l) [ - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
' ~0 ?# E p8 G" W - ESP.restart();
' _( y" c5 Z0 \4 C& v; N - },[](){
* z+ h5 i+ m6 D4 _/ c' r9 I - HTTPUpload& upload = server.upload();3 L$ |% I# I2 X6 {2 F M
- if(upload.status == UPLOAD_FILE_START){
3 S2 Q( S* J; `' p - Serial.setDebugOutput(true);
% ?2 D; X" E2 G; c8 e) x - Serial.printf("Update: %s\n", upload.filename.c_str());
) |, O& j0 {" W/ v- T0 O$ y7 W& _/ ^ - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;" f& m! O; k H: Q; L$ {& `$ g' _
- if(!Update.begin(maxSketchSpace)){
; w# r8 W0 r1 ?6 z& q+ j7 A4 f# W - Update.printError(Serial);
- Z* x6 e) B2 F5 ^1 O) J3 W6 \! v - }# T& X9 h( [+ O
- } else if(upload.status == UPLOAD_FILE_WRITE){; f$ V& d* Y8 B& [
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
) p, o: Z* E: o& T+ y1 Y - Update.printError(Serial);
+ ~9 N" P2 a+ {* j+ m$ h - }3 c8 Q+ Y+ b- N1 |) |. [ Y9 o+ y
- } else if(upload.status == UPLOAD_FILE_END){. t( j! X3 e$ U' W7 o1 t; [. ]2 t, j; W
- if(Update.end(true)){3 s$ \: X3 x* B+ e- m& t* B& F
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
8 I4 e' R. D- Y' { - } else {
2 k. O9 s3 y6 n - Update.printError(Serial);5 I0 ?3 P# L& ~( G! D2 `
- }7 n+ F, E3 R) L& A2 c. ^" F9 ~* `, V
- Serial.setDebugOutput(false);& R5 j: N- ]0 s7 i! W) g! s# O0 n) C
- }: b& @. f. Y$ O2 N0 r
- yield();
1 X$ I$ I2 W9 b: |5 c8 e' x) W% a - });1 ]& @- r. X! d: @
- : d% v1 V4 o: D6 r3 W0 \
- digitalWrite(2,0);; Z/ ]* n- C t/ \/ ?) ], `
- mainAction();
5 S8 ?$ T) B* _! R6 z ` - if (digitalRead(0)){5 E7 f& _% A: o; x
- ESP.deepSleep(0);
: ^9 q- [$ e a0 `7 E- K j, [3 y6 d - } else {
4 X( z+ S6 d. @ - server.begin();2 D2 {# @/ i: k* _
- }
- y: a/ a9 r* I( ~/ X2 `2 d0 b - }
: I6 ^2 u3 z4 C8 D - void loop() {
+ i% V% H2 y9 R, K( R7 G - server.handleClient();8 F5 h' Q9 \7 x- j' [
- delay(1);2 m5 z3 C1 H& Y( u V! v+ r
- }
; g1 ]) h4 ^% m; j: d0 m1 p( _ - String doGet(String url){6 T* ]" g7 j$ J! x2 n
- if ((WiFiMulti.run() == WL_CONNECTED)) {
9 l% @& T2 k3 p7 W; {0 y0 l- {" { - HTTPClient http;4 `. i( a6 [/ U- a* [
- Serial.println("[HTTP] begin...");
4 ~* P' Q* O) R/ V& p - if (url.startsWith("https")) {
+ H7 y+ Z0 R2 e" I' M% f( M - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");% t; {1 i5 F% W/ ?& @8 s; @' e9 [
- } else { q* p" ?, B1 y6 N1 v. a3 M
- http.begin(url);
N- j S2 f9 A% S5 _& E' a - }( m5 Z) i% N z- @9 G4 w
- Serial.println("[HTTP] GET...");
6 J5 M. _: e3 C7 r, ` - int httpCode = http.GET(); ~. m' o) k* t6 F$ |; |+ y B
- if (httpCode > 0) {
m$ w/ |/ W# C! E/ B5 F& P - Serial.printf("[HTTP] code: %d\n", httpCode);, [* j, {/ _; `6 m( J! |# T
- if (httpCode == HTTP_CODE_OK) {
4 r* p) @& K+ B& ^& U! A - String payload = http.getString();
) O1 o8 J8 t: ~. b7 K1 A3 j - Serial.println(payload);
0 f* o" a' `! }7 u8 X3 m5 d - Serial.print("\r\n");
9 o. U3 {7 W8 C# `) ^7 H4 P - return payload;0 r) W% O- a" Z" x) h8 r+ z( r
- }
* }+ ~6 m$ {4 f* X, ?& M - } else {2 c- T; M8 ]& D& h4 p
- Serial.printf("[HTTP] GET... failed, error: %s\n",; m$ v. V# L" P: \6 k1 p
- http.errorToString(httpCode).c_str());- K7 N7 ~# c" |& U7 s+ `% I* F
- }
( `* S0 p9 ?$ S; ^; A - http.end();
: z b, b4 [* F, _& C - return "";1 j* e4 ?7 M- m9 }! t( V, c
- }
: J( l+ S) d$ u: Z: E - }0 Y7 ^# C+ c, y& ]" X# m7 ^7 h, ^6 ?
- void mainAction() {
1 _3 ~: _, Y6 C% v5 ^* [6 r( v - // 发送请求
! e3 J' m4 {4 U9 Z/ f5 h! n - doGet("http://google.cn");' e7 Y1 \0 S5 S& P
- }* g) E- `! V0 ~. m3 [& z8 z, i E
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