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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)0 K; j6 c9 H1 R" D
- #include <ESP8266HTTPClient.h>9 E+ D. q6 Q9 ?- y1 R, {% |
- #include <ESP8266WiFi.h>
t7 `7 [0 V3 |' M" F. F - #include <ESP8266WiFiMulti.h>
- k! `+ u; M% [0 n. B% V - #include <ESP8266WebServer.h>6 w7 y; R6 \8 e/ }' m
- #include <arduino.h>/ X' Y- M5 [+ L' G# U+ f( ]
- ESP8266WiFiMulti WiFiMulti;8 _2 ^8 _2 @5 h
- ESP8266WebServer server(80);. B( `2 M: ]& F: A- c0 s
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";0 M) _2 F, [( N9 z$ J: z1 }2 X
- ADC_MODE(ADC_VCC);: c& k0 W9 I% E& B, L6 {
- void setup() {/ y3 F7 ]; W7 x) j- o0 m0 p8 a5 x. L
- Serial.begin(115200);
1 U3 [% l2 g4 H Y* B - Serial.print("\r\n\n");
U5 i, I; B% I - pinMode(2,OUTPUT);
2 m5 Q& Z* S2 Z2 u' Y - // WIFI7 N f: W4 h" f0 ?
- WiFi.mode(WIFI_STA);3 k) r5 W' O4 N y! {
- WiFi.hostname("Sparkle");
% [- h6 J6 s' R' |8 A' V% z$ e - WiFiMulti.addAP("wifi ssid", "wifi password");* v" T; m, c) c/ D
- int tryNum = 15;
1 k$ W0 t8 e% |0 g6 L0 _ - Serial.print("Connect WiFi");3 p# |( o+ M6 f, U
- while (WiFiMulti.run() != WL_CONNECTED) {
8 a* W. j3 S6 ~# r - digitalWrite(2,0);# q1 u& w: y% y$ K$ {5 ]( O; D! j" _
- delay(200);
% W5 i9 u3 L: F, ^; F$ |; N3 C - digitalWrite(2,1);
7 v2 Z6 t6 Z& ?0 A - delay(300);$ ^# E0 p7 i. |8 Z* d
- Serial.print(".");" j6 f0 W, g) m( s
- tryNum--;" C* q( B% F5 Z5 f
- if (tryNum == 0) {
7 x8 Q. U1 I# D0 @* m& ~ - // 1min+ H' C1 m) ? b$ m! X2 u
- // ESP.deepSleep(60e6);* I; b5 a* z$ a; [
- ESP.deepSleep(0);
8 J2 R5 N& y2 @ q, W" |7 C' x - }
9 L+ A- y! [6 Q; d5 a/ I - }! C& m. i1 ]5 J7 e. [4 X" v
- Serial.print("\r\n");
' Q; f5 Y3 R* R! |5 p& g - digitalWrite(2,1);* Y. V9 o" o' o1 s1 R
- Serial.print("IP address : ");# M j1 J8 q9 d3 f
- Serial.println(WiFi.localIP());; I: Q7 v0 x% h8 \7 u
- server.on("/", HTTP_GET, [](){" C! p0 W% M9 u
- server.sendHeader("Connection", "close");' P% _: I" m" h7 c6 W
- server.send(200, "text/html", serverIndex);: p" \* u- Z- N
- });5 Z2 Y- Y7 c6 [ f- |% t
- server.on("/update", HTTP_POST, [](){
3 l2 v2 m0 N1 ]$ Z - server.sendHeader("Connection", "close");
& m" m2 o5 u1 J# ?& c+ R. t - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
1 \" l: `% M# H4 M- m* M* ]4 c - ESP.restart();* f* i: I7 @5 B/ Y& G7 S: [0 n
- },[](){; W7 B' c4 m5 z j3 f0 @$ j
- HTTPUpload& upload = server.upload(); p" I' a6 H% C# a* @: T+ W, N, B
- if(upload.status == UPLOAD_FILE_START){
$ [% v+ w; \$ B" o# r - Serial.setDebugOutput(true);( m# `* \& y- b1 v9 ]
- Serial.printf("Update: %s\n", upload.filename.c_str());; v4 T4 g3 Y3 h+ A( S' Q
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
/ }5 p. M- Q# p# \1 A - if(!Update.begin(maxSketchSpace)){
: a% [: c5 H/ ?$ e - Update.printError(Serial);
9 T0 |9 J$ T+ P0 ]* R7 A$ Q8 o - }
" C4 V: Q4 f4 j) W: q' b9 r - } else if(upload.status == UPLOAD_FILE_WRITE){, X; D2 y7 w2 I8 i
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){" }; U2 u! l+ x% j6 X5 _8 h
- Update.printError(Serial);5 c3 G) p# C2 u" n1 p4 Y. k: L
- }) _- L" M' r! }9 y1 Y3 P, i
- } else if(upload.status == UPLOAD_FILE_END){
, w! N9 s* G4 A. i - if(Update.end(true)){
6 Q% ]4 V7 W6 \ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
0 a' z- ]8 s% m3 ]6 Z9 g - } else {9 `4 W. _1 P5 _4 F0 j
- Update.printError(Serial);1 s* Q9 _- | z7 M8 l3 ^
- }; W6 b: J( K. U' `
- Serial.setDebugOutput(false);
- w% C5 Y% V- d( `- ?9 P- y% P - }3 T: G n) g" n( H
- yield();1 x2 N( J6 s5 _! K, ~4 g
- });1 c# p3 [& V$ g
- " Y0 B' c" f6 P9 s. o8 z
- digitalWrite(2,0);& I) r3 b! l7 H ^
- mainAction();
& T6 D4 J |& r# N: L% R - if (digitalRead(0)){
+ A f% w2 Y( m% c - ESP.deepSleep(0);
6 G4 Q$ y/ m3 \. d$ [/ D5 s7 F - } else {7 k$ g% f) b: `$ u; ?. |5 I
- server.begin();! R: `8 R9 s3 y1 K! Q, f0 z4 k
- }+ {6 P! a. i3 x# z
- }
0 y% u3 D1 Z: O# z9 |- B& i# C - void loop() {% L$ X) ]' \' e9 K7 h
- server.handleClient();
?8 T G8 e }1 D - delay(1);) D: I1 Y: Z1 a& p* G5 q
- }4 K$ X, A. ~$ [# s# P' X1 E+ X7 C
- String doGet(String url){
; M s k( j7 o$ ~6 A/ s, @0 y - if ((WiFiMulti.run() == WL_CONNECTED)) {! ]; l& y h$ [4 ]& q! [
- HTTPClient http;
# G- N# F( ~ l+ Z/ E) f; Z - Serial.println("[HTTP] begin...");
5 r; p; y! D5 b3 |% K7 M - if (url.startsWith("https")) {; v5 l8 C1 F H& T
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
, c4 U/ s# _- W* B. }9 F - } else {& j) ]" _% c, `7 J
- http.begin(url);% Z7 s7 u# {# z U" O
- }2 B. O Z! {$ A" w
- Serial.println("[HTTP] GET...");' N/ I, O9 w% H% n+ ^5 @5 l- t1 |' A
- int httpCode = http.GET();! u6 A7 @( l9 s8 Q/ l6 A1 ^4 G( V C: S
- if (httpCode > 0) {) P8 `* Y8 Q0 |8 L! t
- Serial.printf("[HTTP] code: %d\n", httpCode);
2 ]+ ]: d) F G; A. x - if (httpCode == HTTP_CODE_OK) {: G; P8 I& G4 R
- String payload = http.getString();/ B' D8 m4 E# U: j
- Serial.println(payload);
# }: d, W4 F6 V - Serial.print("\r\n");
1 H0 e0 e; ?9 a - return payload;& s, E/ J0 C" K7 T- t+ D4 x
- }
! ^$ B* E# i4 h4 o, \6 D9 A - } else {
% s4 `# H, B+ P [( L - Serial.printf("[HTTP] GET... failed, error: %s\n",) w( ]) {- W" p7 `8 }
- http.errorToString(httpCode).c_str());
' i0 W; R/ W0 @ - }
) o3 ]/ Q& l0 E5 K9 R7 B$ ?2 t4 W - http.end();
3 d& H9 `6 H8 K6 X( t" U* b - return "";; S( X4 L) G& m- Q$ B K
- } V6 {, u- x0 u( R( e
- }, Y# d$ y' T4 \ n% y( U- P
- void mainAction() {
' f2 Q, I' p* h" Y, M; @ F" S - // 发送请求
3 x4 ?& I& z/ L - doGet("http://google.cn");3 ]) r6 \% s) A4 e( \) x0 d% G+ h
- }
5 ~" A" M/ t z( o* l0 T
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