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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)
z$ H: s% G3 [* z" w5 ?- #include <ESP8266HTTPClient.h>% U' }: S. C: l- q1 p
- #include <ESP8266WiFi.h>; D; l$ [) d% W1 a9 T
- #include <ESP8266WiFiMulti.h>2 i: S- d) H( [: O2 I$ c
- #include <ESP8266WebServer.h>
$ O; p& M/ _( Q3 o - #include <arduino.h>
, [& s# n" P* j' ^' i! e! w) z) F: ? - ESP8266WiFiMulti WiFiMulti;8 U0 b; _) H4 g. c2 y/ z" e
- ESP8266WebServer server(80);2 B- W) ?, h0 a1 {! y3 ?. {* M/ Y) I
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";. z9 f5 p% Q: v; a2 ]7 s
- ADC_MODE(ADC_VCC);8 `9 J" B0 A; q: f
- void setup() {$ B* }- K$ H) L3 p) a6 G) [0 m
- Serial.begin(115200);/ ~$ @# l5 y4 A1 \: S0 `
- Serial.print("\r\n\n");; }5 M/ i5 C( u) d/ Z' C
- pinMode(2,OUTPUT);
- B* z" F$ i8 ~* x3 D* M - // WIFI" I3 W6 t" i. e4 A
- WiFi.mode(WIFI_STA);- u7 G7 w3 _, R E ` j! H* F" l8 o
- WiFi.hostname("Sparkle");1 G- r F3 S1 ^
- WiFiMulti.addAP("wifi ssid", "wifi password");
- s7 c$ ?! j0 B) ?$ N - int tryNum = 15;
' m& n) W4 N, v6 I# _ - Serial.print("Connect WiFi");
7 v2 ^; ?0 s0 u( j. L - while (WiFiMulti.run() != WL_CONNECTED) {
" e% Q0 }7 L$ h - digitalWrite(2,0);/ q/ h4 M6 d8 s
- delay(200);* b( m' `7 Y/ k* D7 |, [
- digitalWrite(2,1);9 H/ G' T! _# `: m
- delay(300);
0 y+ v* b' I; B9 V - Serial.print(".");- c8 |* {$ U) R. c E! n& b
- tryNum--;
9 i$ A2 T% b8 J# K - if (tryNum == 0) {
# ^: Q! x. v5 i3 e$ k6 ] - // 1min
2 ?" M$ y$ p7 ]7 J! f - // ESP.deepSleep(60e6);
4 @8 c' i4 V: l4 T7 L; c# L4 N - ESP.deepSleep(0);# \" h3 L2 W+ {0 {0 F+ F, B$ A x
- }
4 ^6 ~' {2 {6 w1 {8 o { - }/ X: n8 Q; r: H; h
- Serial.print("\r\n");# {4 j8 w Z: |+ z7 `7 E
- digitalWrite(2,1);9 `4 V- d+ ?8 a( K0 n: G
- Serial.print("IP address : ");! W7 s% o: Q# o+ t3 ?2 h; o. Z% q6 z
- Serial.println(WiFi.localIP());8 q# E2 `- \3 E4 V; T2 R5 R7 z3 T
- server.on("/", HTTP_GET, [](){
' ^* \ Y! d. i' t* a - server.sendHeader("Connection", "close");
8 n9 U3 @1 O( R5 h- V - server.send(200, "text/html", serverIndex);; k& B1 P. @1 i' ~5 |
- });
* ]1 S6 t" `2 p+ y6 m - server.on("/update", HTTP_POST, [](){8 m6 [* |% R8 R3 t% D; b# `
- server.sendHeader("Connection", "close");
! X4 `! e( a5 u& T4 d2 G - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
) N5 a7 e, b5 d9 b% q0 p - ESP.restart();1 p% h- r/ P2 v$ L. B8 C5 `# H8 \5 R
- },[](){
4 |) K6 i! ~' A5 W; p3 Y - HTTPUpload& upload = server.upload();8 e+ h$ ~) w0 N2 v
- if(upload.status == UPLOAD_FILE_START){
D! d9 a. o- J - Serial.setDebugOutput(true);8 f3 t2 @0 A. h
- Serial.printf("Update: %s\n", upload.filename.c_str());
0 t1 ~' z+ q! w5 H& H1 a# h- u - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;6 ?2 ?+ I- o7 G- S' z% i
- if(!Update.begin(maxSketchSpace)){" q- P5 X( d! T6 ^+ X6 E
- Update.printError(Serial);* `) X0 `% H( X8 ~, A+ d2 k
- }
4 J3 S# `2 z3 j- g7 z - } else if(upload.status == UPLOAD_FILE_WRITE){
" I6 c# T. j* O4 N: [! D - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){1 ?. z+ b. y& g/ \5 S
- Update.printError(Serial);+ p; Q1 b" o% j2 E" i+ M0 x' y& [
- }
6 H" t0 r' [; W s* [1 z# ?" @. h! E - } else if(upload.status == UPLOAD_FILE_END){8 I9 u4 }2 U& Z) k8 s
- if(Update.end(true)){
! B& b% E9 W: F$ ^ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
+ H4 t5 X- ^+ `( V - } else {
9 x. ^- U# }! i2 t" V9 K0 @ - Update.printError(Serial);
9 y8 k$ K* i3 j Q( Y% X4 E. _ - }- s$ l+ f0 c+ ~2 {( w A
- Serial.setDebugOutput(false);
* r1 b; u# a5 n1 r( a - }
! [2 L4 w G" Y2 }% q( M' I3 c - yield();
+ G+ n- W" k/ {0 b - });
! x+ Y; Z0 Z1 f0 Q, J -
: g! c$ l0 p7 v - digitalWrite(2,0);
; B: S8 P' u# S+ P9 a- i - mainAction();0 U& s0 h2 a9 N6 Y( z+ ?( f7 C
- if (digitalRead(0)){
" t) R/ `, e) @$ N - ESP.deepSleep(0);: h1 r$ W& V4 P. m6 ]
- } else {
* T6 r5 _! g |- o7 |9 | - server.begin();4 k F2 l$ F A' S% {
- }
4 D" t# |: J/ c8 o# Q& I - }# t& e6 ]6 r; a5 c `, ]
- void loop() {
: j- p; o- j7 X6 b$ ], ` - server.handleClient(); O: X0 ^" T3 {: k, s; R: N
- delay(1);* K5 r# Q* k9 _7 I# y4 o0 d
- }
5 |2 E& N& s/ F. \- L6 Y; e - String doGet(String url){
% E5 F" `0 E b; o% Z0 S; G - if ((WiFiMulti.run() == WL_CONNECTED)) {4 Y% }" }4 q) H- [: L, z- s
- HTTPClient http;0 ~/ L% u# A0 U. S
- Serial.println("[HTTP] begin...");
# |3 @) s* v+ a; |* P: p - if (url.startsWith("https")) {
. J& j$ a2 p. j - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
5 m' M7 C6 J* t - } else {
2 z; w2 }0 |) _5 @1 x6 x - http.begin(url);
& M7 F0 ^3 a9 [* I - }3 K ^3 c3 h1 }+ \0 I$ W2 C6 N
- Serial.println("[HTTP] GET...");
! ~* E5 I; r, K0 G3 i" U3 u- D3 ^ - int httpCode = http.GET();
$ r3 n/ y, q4 Z1 x - if (httpCode > 0) {7 I* C |4 ]' q; H
- Serial.printf("[HTTP] code: %d\n", httpCode);% E: a `1 E3 i3 n" u! h) F ?
- if (httpCode == HTTP_CODE_OK) {
) @; d- [* z, U% }8 i - String payload = http.getString();6 r1 L p" Z" E5 Y8 o5 m* [- {0 v
- Serial.println(payload);' h. r% T2 D3 { n& M+ @
- Serial.print("\r\n");* j: z0 f6 @/ y/ {
- return payload;
: s) F3 k$ F2 P) u - }
4 j' T* b% Z! F; _6 t - } else {
9 h! f2 U: E: y d - Serial.printf("[HTTP] GET... failed, error: %s\n",+ W% f. q$ @& g3 Y- Z: M& G
- http.errorToString(httpCode).c_str());1 }6 Y5 ]0 [- `& L$ x
- }# m+ x$ f- l/ h6 v0 \7 L! A
- http.end();7 v( L$ M% ~: Z' B- ^
- return "";
5 a" O0 {" U; u$ b: { - }3 p( @4 e+ s e B6 \& T$ {
- }/ }% m/ C- `2 K U6 v) {: u, L
- void mainAction() {& s6 x5 N$ X! ]& ]
- // 发送请求
1 B* T+ W1 }5 m0 d - doGet("http://google.cn");
3 W- s3 ?6 b2 Z6 i, ^; b, i! Z - }
6 f0 R3 M+ p4 i: M
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