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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)
# }1 e) `4 ^* C2 {8 m- #include <ESP8266HTTPClient.h>3 P; g \) x' D5 K; O
- #include <ESP8266WiFi.h> P7 w5 S0 w; u Q3 t. V3 |
- #include <ESP8266WiFiMulti.h>8 _$ u- u' a7 `/ ?6 ]
- #include <ESP8266WebServer.h>
" M. }( e9 S# N0 m+ t - #include <arduino.h>
9 ]* X# S7 Y* F+ ] - ESP8266WiFiMulti WiFiMulti;$ O& Z0 l V% S! o# q* Q9 P0 X" ?
- ESP8266WebServer server(80);: }4 e% L0 N5 W6 ~4 v% Z5 }
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";5 T( X" r, f6 \1 K; r" P4 J/ m
- ADC_MODE(ADC_VCC);5 M. t2 G/ K4 O4 b q/ S% G1 T
- void setup() {+ n# n3 p" r. _/ V
- Serial.begin(115200);# ?6 _6 H( s. s! R- G4 O& l, G
- Serial.print("\r\n\n");
) I I+ F$ x( T' h. t - pinMode(2,OUTPUT);, L1 K! }; H4 ~% G; Q7 J
- // WIFI
; {; y) z1 V( A6 w4 Q - WiFi.mode(WIFI_STA);
- p: C0 r: ?0 _/ X2 _, s* k - WiFi.hostname("Sparkle");. f0 {4 R2 E8 g
- WiFiMulti.addAP("wifi ssid", "wifi password");
. T- E. g1 \" t. k3 l4 u! p, r9 y - int tryNum = 15;+ [1 `3 ` U8 V( w+ D
- Serial.print("Connect WiFi");1 J" c+ z% M/ i! `7 c- V
- while (WiFiMulti.run() != WL_CONNECTED) {2 Z7 s6 b9 f+ ?- |, y
- digitalWrite(2,0);
$ Y% V& ]2 V. ?" I& _/ E - delay(200);
4 ^, k) D3 E4 \" ]! }* Y/ m" m - digitalWrite(2,1);
2 p2 X! B, B0 H" Q" t$ X - delay(300);) r; x+ [% g8 `1 X+ U' c8 ]
- Serial.print(".");
7 {4 s2 {& }6 g: k5 Z5 j - tryNum--;$ l9 i9 z3 ~- V/ T
- if (tryNum == 0) {+ {( {" j! X# F2 l$ f0 T2 e
- // 1min
" t: I) \* O$ b - // ESP.deepSleep(60e6);
7 w% Z- I& W0 k" D. e1 [: ~2 O - ESP.deepSleep(0);
$ h! U8 L6 S. v0 c$ B1 M! P - }+ k: M) a; B2 Z( `0 |. ~
- }
* r& x: T8 u/ A' h+ S - Serial.print("\r\n");
* h) k+ T! T, s, i5 z. |) U% G - digitalWrite(2,1);
; d+ i) [* R; k$ H- S3 \! L - Serial.print("IP address : ");' K# K$ B5 A2 A) w& t
- Serial.println(WiFi.localIP());& z+ [9 A/ t1 _2 r0 G9 S
- server.on("/", HTTP_GET, [](){
* w/ p# B2 w9 C8 W, c7 U0 p - server.sendHeader("Connection", "close");
$ ^5 p0 }/ i* s; ? - server.send(200, "text/html", serverIndex);
8 F' x. F: U4 E, o3 w - });7 u0 v& n6 p8 C: C. E
- server.on("/update", HTTP_POST, [](){
1 P& ]- g9 y0 u) c5 t! g! t - server.sendHeader("Connection", "close");
5 q% K' H& B5 |* e - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");" x0 |+ ~7 B9 a4 A& q1 w
- ESP.restart();! F/ @. ?2 K% [- [: l' w" W
- },[](){
9 K5 l9 ^& K6 Z4 K - HTTPUpload& upload = server.upload();
( J& D( t: y* B: |' X - if(upload.status == UPLOAD_FILE_START){
+ C! a& X) m6 w# S! Q" R. Y9 \5 S' u - Serial.setDebugOutput(true);7 k& j7 x; V2 j0 l2 ?
- Serial.printf("Update: %s\n", upload.filename.c_str());
/ x+ E& t& D1 v( g$ K - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;. m1 g G) F( R) N/ {# a2 m1 K
- if(!Update.begin(maxSketchSpace)){
- H+ n# j. T: S0 i9 n. k - Update.printError(Serial);! s+ j$ p" f% W( \
- }4 {0 ?8 v! w- b: u5 C9 q: f# t
- } else if(upload.status == UPLOAD_FILE_WRITE){* O9 Q8 r; V! |3 Z
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
) G/ {! j; D" |5 B - Update.printError(Serial);) @- k+ s: x1 v& c. T
- }1 v; l( Z' o) J: Q1 R' R8 F
- } else if(upload.status == UPLOAD_FILE_END){7 s4 e2 H# h" a7 E! T7 V" L# a
- if(Update.end(true)){
8 a p t# k, C7 U5 }( B; e7 Q - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);2 B4 h$ b7 Y+ r {4 ^( o" ^. {
- } else {$ z# N& ]' T3 {
- Update.printError(Serial);
9 d/ ]' J% ?/ E" N, O - }
' ]. O6 ]2 n# g) j2 G9 t. S9 W - Serial.setDebugOutput(false);+ f5 F( A1 P: l" ~. a# p/ S
- }1 t6 R* h" J T/ a% I! H
- yield();) u& }$ K, k3 ]: Z/ o7 `% S
- });) K) f/ _/ O& {& Y; k3 h+ Z
- & f5 F; R- X( p J
- digitalWrite(2,0);" U! ~# C. d3 s& B+ E$ V5 d
- mainAction();
4 R1 x% t5 }! L# V' j! p. x- P - if (digitalRead(0)){, i5 z0 H4 q7 K* L2 J
- ESP.deepSleep(0);% O7 K- m0 u/ l3 V' B5 V" i
- } else {
# e7 l- x, j0 K+ R# f - server.begin();
! | V( \! h9 h2 f% ?6 g - }
0 G3 ]3 @" \; [; g; r - }
6 r( \" D8 M5 g# X) { - void loop() {* e+ l% x) H! h7 v6 ~. V3 `
- server.handleClient();4 e* t7 \9 W: ~, r' I+ i
- delay(1);7 U$ s2 o0 O7 R( W" x
- }
& ]- \, C, G7 z1 k; o, R - String doGet(String url){! q5 M# @( M Q5 I: p5 N; X6 Q
- if ((WiFiMulti.run() == WL_CONNECTED)) { H1 E# q! g& Z- O' L5 v
- HTTPClient http;$ L" q) T1 K3 a5 ~! y' m7 {; K
- Serial.println("[HTTP] begin...");
" a: H: k' X! R5 \( M) O - if (url.startsWith("https")) {+ o: ^5 o3 x' m. @* z5 E
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
6 N. U* i2 S: _$ M3 Q+ O8 U - } else {5 B5 i; f- O9 H- x* B
- http.begin(url);
/ T! F% W+ [8 |" }7 n3 f - }
: P9 ^2 `2 M$ i h; b" q/ S- N - Serial.println("[HTTP] GET...");! i5 W l% j; u" p, f9 B9 j
- int httpCode = http.GET();
$ t+ ]5 S4 X: A5 F; c3 ~8 a - if (httpCode > 0) {; T% R4 b- A8 [; ~3 E
- Serial.printf("[HTTP] code: %d\n", httpCode);4 A: N* J+ i( C7 n
- if (httpCode == HTTP_CODE_OK) {
8 z3 L/ V. p. m, K* z- [) Z - String payload = http.getString();7 r g2 i, Y1 \6 _; [
- Serial.println(payload);& j4 J3 j+ ~! W
- Serial.print("\r\n");1 F* Z! R* Y* m5 |
- return payload;! y+ T, Y2 D0 g8 } j
- }
2 f1 }$ B3 W9 S( S! m( ^+ T - } else {$ U3 F3 C& R% C; F
- Serial.printf("[HTTP] GET... failed, error: %s\n",
5 P6 _5 H5 r! k$ M( A% A. i* _7 e - http.errorToString(httpCode).c_str());
& v" @7 p1 n* V/ ^! m: s: u6 g - }
( X3 `8 G o7 \- T' T6 x k - http.end();
$ }8 p6 T/ |1 O, l( s" M - return "";
" g$ s2 f3 R: j& r+ N8 |* f7 R% u - }1 q5 d9 o( v8 t r
- }% r5 D6 M' Q, O* s8 W
- void mainAction() { }) x, o# ~6 C+ U4 P
- // 发送请求$ A8 K& S* [, _; O
- doGet("http://google.cn");
2 W. V) u: X4 T5 q7 O - }
0 U: @7 V% `- A* r2 ~+ c; w* }
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