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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)
+ g. C/ c8 w, L: S1 K- #include <ESP8266HTTPClient.h>
) R7 n" t; A+ ^, ?+ E - #include <ESP8266WiFi.h>
, k% m9 m2 o; s" r5 E - #include <ESP8266WiFiMulti.h>
# i( [9 W0 r& e# } - #include <ESP8266WebServer.h>
- B. _8 d- W! A- d - #include <arduino.h>& h+ ~* a- d4 n( t5 J
- ESP8266WiFiMulti WiFiMulti;" G' Q5 B' {' v
- ESP8266WebServer server(80);
) |8 D4 C4 Q/ }- B6 U: V - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";! w' m3 y( I8 r# K
- ADC_MODE(ADC_VCC);
% ~ M5 `, V9 k3 h! T8 C/ W. m" V - void setup() {
. {! _+ {& _; f& g8 u( n- e, H5 k& F - Serial.begin(115200);& i ~" x) g2 Y D! b7 H
- Serial.print("\r\n\n");
( @, X# f h; a2 y8 W" b6 @ - pinMode(2,OUTPUT);# }+ G% L/ |3 I
- // WIFI9 Q9 @/ Z9 S, W. k7 f0 q
- WiFi.mode(WIFI_STA);6 C8 \! v; R( D, g0 F* Y+ N& H
- WiFi.hostname("Sparkle");$ K+ y% a# L/ N2 }
- WiFiMulti.addAP("wifi ssid", "wifi password");9 Q" u: P0 |* T5 v/ A) |4 c* X
- int tryNum = 15;8 x: Y- L' L, R+ u. v
- Serial.print("Connect WiFi");
0 l" h3 ]+ s2 Y9 X9 i2 q - while (WiFiMulti.run() != WL_CONNECTED) {: q, G! O5 K: n- d
- digitalWrite(2,0);
; G& \9 f3 u. ]1 K - delay(200);
% `1 {6 Y, `4 J. F4 ` \ - digitalWrite(2,1);; _. S5 k0 W4 D& N/ i
- delay(300);; f. m) l: V& k; T; f
- Serial.print(".");) A" L7 j5 V% B) h Z
- tryNum--;
- a& h; L" A. | - if (tryNum == 0) {+ A2 ^# W" e! V. p |6 Q
- // 1min) R' i. ^1 x: o
- // ESP.deepSleep(60e6);
5 I% B1 M1 F7 D: |" m - ESP.deepSleep(0);5 q8 K$ s; Z6 V. p7 [2 R# s
- }2 S9 x, Y# y3 P( N4 e- `% Q" Z
- }9 P) g8 S6 i5 R
- Serial.print("\r\n");8 O; K* y/ |$ c5 m ~/ F2 \
- digitalWrite(2,1);
. J$ j3 q( x2 f - Serial.print("IP address : ");
5 _; X9 X3 z7 A! d6 ]5 H x - Serial.println(WiFi.localIP());$ l6 y# \7 S9 m; ~7 \
- server.on("/", HTTP_GET, [](){7 y+ _) }9 O' x7 v$ |
- server.sendHeader("Connection", "close");, g5 D9 J8 j& r4 j6 d: C! v
- server.send(200, "text/html", serverIndex);7 D, R* b9 P/ t% r \
- });; J/ I3 A; X* T! X; M
- server.on("/update", HTTP_POST, [](){
. p1 I6 `$ q( H: Y- `* l - server.sendHeader("Connection", "close");+ }% ` r. A' }6 n
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
3 A8 ^# @6 j1 I2 T+ M3 n - ESP.restart();+ z+ m3 J* E/ D; ~/ \- r& t
- },[](){# [! t# y) _% G' _7 d) _* Z
- HTTPUpload& upload = server.upload();
, [- [$ Q) K+ W& e+ U% Q - if(upload.status == UPLOAD_FILE_START){% v; |& m3 U8 ^. s* w
- Serial.setDebugOutput(true);
5 v/ _# P0 O# i - Serial.printf("Update: %s\n", upload.filename.c_str());$ p' j# T3 R0 g; Q& g" n
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
; p; @) T" d- p# Y7 o7 m8 t) U - if(!Update.begin(maxSketchSpace)){
4 Y0 R1 L) J5 B) ]. J1 Z- Q$ P - Update.printError(Serial);
# }4 v+ h! i# y - }
3 E: m+ U; j' {! m. c& ?9 E- H - } else if(upload.status == UPLOAD_FILE_WRITE){
3 T5 l/ _% ~, e - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
5 q9 U( r' S! v1 l - Update.printError(Serial);" \; _: O- e# L- ]' I A
- }" X2 B1 S5 l- b/ q( [- P
- } else if(upload.status == UPLOAD_FILE_END){( }4 p# Q# Q) J& {& P; A- |
- if(Update.end(true)){
" D% W, U1 S, {# X$ N! x, x - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);7 ?$ ?9 [/ D+ v
- } else {
F& ^$ n1 `5 W. _2 Y - Update.printError(Serial);& ^* q8 Q2 y- Z% j/ R+ _; H
- }/ F ] r: o- R& M# s
- Serial.setDebugOutput(false);
+ R. R, F' l/ u, j - }
* w: r/ O& x; K - yield();8 ]5 r1 e5 _# X% P0 R. U
- });! U% Y( H* B5 _. {; K
-
' |8 ~2 V: x2 g# ^- o4 Q* f6 q - digitalWrite(2,0);6 x. `5 n. ~( }. ^
- mainAction();
. R; r/ S) l4 u& g& M2 S - if (digitalRead(0)){
: G5 c9 p a0 L9 S - ESP.deepSleep(0);
" o3 n7 q1 z( P% p8 [: v6 n5 J4 ] - } else {, U, g" n/ @. j3 d; @# n
- server.begin(); ^/ q- T, l# \. q4 @0 P( ?# N
- }! f4 B2 v) u+ q. ]8 W1 P6 _
- }9 `' a7 N6 b% A
- void loop() {
6 A9 B9 q" ] Y, Q; r( }5 ` - server.handleClient();5 a" `$ g7 x5 e4 V; @- T
- delay(1);
& R6 P0 {; X% w$ B - }
1 j3 N$ u4 O8 ]% k" f - String doGet(String url){
* U1 v/ Y% |! `. ~( X) o5 F - if ((WiFiMulti.run() == WL_CONNECTED)) {
# i: M3 J! d( Z - HTTPClient http;
1 f$ O# m; C8 t- m% p8 J - Serial.println("[HTTP] begin..."); }, u9 y% @ u# x) B) }. l" p
- if (url.startsWith("https")) {
( W+ h+ e( z& g* H( E6 t* K+ D: x* U - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
, ?$ `0 A* q' u) d" D - } else {7 n/ A& Y6 j% [- }. a1 N
- http.begin(url);* i4 A6 r l+ T A
- }
$ {5 x. b7 E+ R2 A - Serial.println("[HTTP] GET...");* I& G+ X$ ^0 p4 n
- int httpCode = http.GET();9 P1 L" W L* v1 M( I6 b2 a0 E8 J
- if (httpCode > 0) {
; T5 j( n2 ?6 L' X- L+ | - Serial.printf("[HTTP] code: %d\n", httpCode);
& q0 s# w# B) T' h/ W+ R - if (httpCode == HTTP_CODE_OK) {- w& Y2 g2 T5 Q1 H/ g/ x5 v" [
- String payload = http.getString();
( b8 r q; M& w% }/ Q0 U - Serial.println(payload);9 s7 K2 G i9 c2 V, }( [, @
- Serial.print("\r\n");
5 |: U) h0 m& t/ d7 g - return payload;4 h9 k+ S1 K/ m, x6 ]+ {# R3 [
- }+ A- h# K2 s' f
- } else {/ K( J# x- E. [) M* m& M i3 h
- Serial.printf("[HTTP] GET... failed, error: %s\n",
+ I# G* e& H& M9 R0 x - http.errorToString(httpCode).c_str());
8 O0 J. f+ K" H: h: ~& x - }! ^3 }( ]2 J, c! d
- http.end();
. S9 n- i: k& a( f; T - return "";8 k. M4 _% N' J
- }
1 D- L! K6 D: q# Q9 U2 M: P+ l1 E# A: J - }
. {/ y% r2 ~" l0 _- t& M) Z - void mainAction() {# N6 [/ Y8 S1 X! O3 T( P9 f: H6 q
- // 发送请求
. D. t$ M/ F- T2 [# h5 } - doGet("http://google.cn");
2 [* {' \* J% k9 E/ @! J) | - }/ l6 X4 i* F2 |9 u# v; Q
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