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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)4 {: A3 S$ m5 w4 q6 B
- #include <ESP8266HTTPClient.h>6 O5 p' t, t) f3 U1 I1 I
- #include <ESP8266WiFi.h>3 U/ g# L, h+ G4 e+ v8 n5 G
- #include <ESP8266WiFiMulti.h>6 n8 q# a1 O. J( d9 o
- #include <ESP8266WebServer.h>
3 Q+ H" A2 e' G7 r5 @ - #include <arduino.h>5 V; r8 a, Z6 D# g
- ESP8266WiFiMulti WiFiMulti;
s W& y' k' _% O1 A: P - ESP8266WebServer server(80);2 {& t4 Z( A- B% S* [( X# w1 ~
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";0 T# W7 }2 ]' Q: a( y
- ADC_MODE(ADC_VCC);
/ p/ m" [( u& q3 l - void setup() {
/ t1 P; B. U7 i2 }4 F5 a - Serial.begin(115200);7 o* z, z4 x2 v2 Y/ O/ A8 Z
- Serial.print("\r\n\n");
; S( a1 G0 F' i# P - pinMode(2,OUTPUT);: b8 o8 G7 q8 j _+ N
- // WIFI
& N; Z+ Q9 U4 k5 O z8 O$ q - WiFi.mode(WIFI_STA);
w9 v) P4 G0 g, z ^# J+ F - WiFi.hostname("Sparkle");
4 a+ ]$ p4 U4 k7 j, t( L - WiFiMulti.addAP("wifi ssid", "wifi password");
) J2 o3 R/ r& \0 I- e9 z - int tryNum = 15;
; m* R- ?- D- ?$ O6 A - Serial.print("Connect WiFi");$ p1 O% l9 J( y E: K! y
- while (WiFiMulti.run() != WL_CONNECTED) {
( P7 _# }: q9 j; e0 D# J - digitalWrite(2,0);
- ?3 n; J$ \# A# H5 X - delay(200);
, P5 N7 z) C6 `; L& c0 v - digitalWrite(2,1);
M0 t' B3 z( M; l3 L6 r: P - delay(300);! }& x9 F- I/ j2 x: W, _% \+ l
- Serial.print(".");9 V% o& ?( `0 T- F2 |, b
- tryNum--;
3 W8 ~( w4 ] j) a$ [/ r - if (tryNum == 0) {
- O5 ~8 O! D5 } - // 1min
+ p- Y# p5 i" a+ E; i - // ESP.deepSleep(60e6);
) u( T8 }- T Y& l - ESP.deepSleep(0);
- ~+ z; b9 F0 t% _8 s& J( q1 D! H - }# u: r' M) w9 O0 S S
- }+ o6 K) r" U3 a. ]' D
- Serial.print("\r\n");! M7 m: {' c, f9 d7 ~
- digitalWrite(2,1);
1 I5 S( L6 {* e' A - Serial.print("IP address : ");- ~. T" T: c, A" ^: |
- Serial.println(WiFi.localIP());" m' @' w/ ?" M9 D
- server.on("/", HTTP_GET, [](){: g: e# U% F N! c( G C
- server.sendHeader("Connection", "close");' M$ _) X# I/ v/ l. T
- server.send(200, "text/html", serverIndex);
% ~2 m: [5 n* R/ \0 L - });$ D# W* S' p! X& o! M/ h8 A1 B
- server.on("/update", HTTP_POST, [](){+ n' E) B2 P1 {2 @0 i0 Y
- server.sendHeader("Connection", "close");
+ h4 K" R; k& F- G - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
# |- l: ]9 N6 x, j* I2 c - ESP.restart();
S% b6 a1 S+ r Z - },[](){8 p+ ~' v2 q6 d9 e
- HTTPUpload& upload = server.upload();
8 W& s% ~( L- d @9 ~2 [; X4 u - if(upload.status == UPLOAD_FILE_START){
# u4 E& E& Q$ ]' E/ U+ q5 p- a - Serial.setDebugOutput(true);) J- o) a7 x5 h' c
- Serial.printf("Update: %s\n", upload.filename.c_str());+ m( \, z( \7 h3 m9 O4 |7 j) C
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;* Q0 Q0 h: d9 h
- if(!Update.begin(maxSketchSpace)){
. F+ S5 [6 k8 @" F" H; ?5 u. q" O* L - Update.printError(Serial);5 [: N& m7 x. s2 Q: t
- }
v% ?1 @3 @) O' ?' j* S - } else if(upload.status == UPLOAD_FILE_WRITE){
: D/ P4 R6 v( ~! r; X - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
2 C3 }6 F. m2 H - Update.printError(Serial);
0 p. v& B( h% q1 J - }: k) v- y; f7 o0 g# i/ b9 H
- } else if(upload.status == UPLOAD_FILE_END){, R! \7 ~1 Z, ^# e
- if(Update.end(true)){6 c* m: K# C. h7 \. t
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);$ J% H- a4 l# A4 ^0 Y; l+ q
- } else {
6 M3 K5 b' A6 Z5 g9 c - Update.printError(Serial);- F1 i' Y& c, {
- }
+ v K+ x/ } b" R5 N0 m - Serial.setDebugOutput(false);6 m6 I' M D4 `
- }
# W3 B; Z; a1 e& T2 V# p+ {( u& ^4 ~6 n - yield();; B9 T( q1 C& j+ j; Q2 L
- });
/ T; y9 n9 m0 D/ R1 d. U -
+ H% f. a' T2 v2 A: `7 E/ k6 M: l - digitalWrite(2,0);. p, ^5 j. l/ r. s; J
- mainAction();
# X4 ] a+ b* J% K5 n* X - if (digitalRead(0)){
# O/ r! [( E9 u7 P$ c - ESP.deepSleep(0);
/ F2 D7 b4 w- C) ]( p7 m2 } - } else {$ q0 I7 Z' L9 I6 l# h6 C9 y
- server.begin();* x$ o2 @0 W9 N
- }# b) E3 [! h4 D
- }$ Q8 g) o# [$ W
- void loop() {
; p- b! ?1 H x3 E. {1 ^ - server.handleClient();% _$ o. T7 e0 o9 U `; E
- delay(1);
( u' [( s" a6 p; W, }1 i/ g: F& C - }
Q0 @3 \- Q; k* S1 D - String doGet(String url){
5 r9 u$ @9 D9 U, j1 h, E7 Y# X - if ((WiFiMulti.run() == WL_CONNECTED)) { e$ C6 N" [; R: e, I4 I
- HTTPClient http;2 a; K+ T, |7 r7 g8 o9 Z( D
- Serial.println("[HTTP] begin...");
' b2 ^+ E. y1 ]9 K8 F- L: E - if (url.startsWith("https")) {% V( _2 z* T k$ I
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");% d* M6 k. g( N/ Q; I3 H! o
- } else {
6 ?! {, ^+ A' i" u9 ` ~ - http.begin(url);
; J9 L# Y. w. X u1 I& m2 h - }( x) ]' n& {6 r
- Serial.println("[HTTP] GET...");) _3 l: P/ g, }* [
- int httpCode = http.GET();; v3 i2 ^+ o8 s# y
- if (httpCode > 0) {
d& K" y( Q! B: T J - Serial.printf("[HTTP] code: %d\n", httpCode);
% D- Z. i3 C/ P D - if (httpCode == HTTP_CODE_OK) {
/ R; e3 v# g! y6 g$ M - String payload = http.getString();
* q" h: n$ C, m - Serial.println(payload);
. R9 _) x6 J; K$ u; [ - Serial.print("\r\n");
7 a' P! z% o. Z5 ? - return payload;9 }- z/ c; c# k( {4 J) w# S% I; i
- }
/ R! k6 {$ f5 Q" G9 E% A8 j - } else {
3 K* `0 I5 F( U1 J# n - Serial.printf("[HTTP] GET... failed, error: %s\n",
! n8 X, E' A5 R - http.errorToString(httpCode).c_str());" B" c% `# b4 a/ ?9 F$ {; b1 W
- }( D7 M- m; h+ H& D8 c5 O) v ?
- http.end();0 R @9 ?( C8 y$ o& J2 W/ e- v3 _
- return "";
' q; S/ d/ c. n$ h" p - }
$ n! I' _9 o4 S' \. Z+ C1 z - }0 h, Z& f9 R% b" { z& p
- void mainAction() {/ j! l3 I \7 E! t& @ B
- // 发送请求( v' `: ~! N: r. }& \
- doGet("http://google.cn");
" M' `2 S* s! Z) Y3 \ - }
) \/ p1 I5 l ]2 ^+ w
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