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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 f+ `8 j" S1 x/ N
- #include <ESP8266HTTPClient.h>
' q8 l( k* `5 G" n - #include <ESP8266WiFi.h>/ u- r8 T& r5 r8 y" j7 _' V
- #include <ESP8266WiFiMulti.h>
6 G) L, V! ]3 u& I% I; F1 T - #include <ESP8266WebServer.h>- ~ ?! B2 ~1 ~+ M u) K q- _
- #include <arduino.h>
' H2 x" B" V- L+ p# n0 d - ESP8266WiFiMulti WiFiMulti;
1 m( c9 A: `9 E, p - ESP8266WebServer server(80);4 V* C; E1 _! N5 h B
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
, N h* e- j4 f+ v - ADC_MODE(ADC_VCC);
. P5 }( u Q7 h7 F+ Z - void setup() {
) q2 ]4 ?; r# T5 \ - Serial.begin(115200);! h, s2 X% ^" }0 R
- Serial.print("\r\n\n");
- N: H( ~8 E) C3 b) T - pinMode(2,OUTPUT);
- ~6 z: O; O1 H! e* t - // WIFI+ S0 `0 t! `& l, y* `" U# F9 }
- WiFi.mode(WIFI_STA);0 }, S. p- F0 ?7 [! L2 e! ]* A
- WiFi.hostname("Sparkle");
! T+ L1 k* _; x" @. b; R$ l& z2 Y' T - WiFiMulti.addAP("wifi ssid", "wifi password");
3 W7 m3 n& |' w9 b - int tryNum = 15;
# O* X: e+ T8 `3 t) @$ [ m* I3 |2 Z - Serial.print("Connect WiFi");' _- \# P& e8 B4 H
- while (WiFiMulti.run() != WL_CONNECTED) {
5 n7 `% f0 y7 a( l7 E/ S - digitalWrite(2,0);! Z- L& |9 q7 X7 g) \
- delay(200);: B, d& O& b1 |. P' r. I& H
- digitalWrite(2,1);3 I6 i$ x6 [/ h" j/ d, u- A
- delay(300);
; U1 y; _* k% G) x - Serial.print(".");( \* Y+ Z% x `
- tryNum--;
( ~' F& l% y+ R5 j/ o - if (tryNum == 0) {
* o& f0 Z# _1 a - // 1min
+ m: W6 W; D* V' }0 C! T - // ESP.deepSleep(60e6);- b" A4 y- z v7 D* [3 z3 x% h
- ESP.deepSleep(0);
0 b( H: N; }8 g4 m - }
$ Y2 a! J. I1 R. r - }8 J: M- w8 g% j
- Serial.print("\r\n");
8 c/ ^" Z% ~- x' R6 l4 { - digitalWrite(2,1);8 |) x/ ~" Y# ]
- Serial.print("IP address : ");" W# o+ b' a4 Z# p/ t* {
- Serial.println(WiFi.localIP());
$ ?. d9 d( x5 V- Q1 q5 {3 d& k - server.on("/", HTTP_GET, [](){* d) @8 y3 [* X
- server.sendHeader("Connection", "close");
' ?. n% A2 M+ V7 k. F - server.send(200, "text/html", serverIndex);
$ C7 y8 l* G# o; t; M: Y% Y - });
/ F) C3 E/ c x9 ?4 ~, j% U0 {# J - server.on("/update", HTTP_POST, [](){- H9 T" e% E5 J* T" L* \! j- I
- server.sendHeader("Connection", "close");
' j7 V- L* ]- J9 l - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
% K2 {/ C+ t5 n - ESP.restart();
, z7 ?# D3 r2 S; c+ N: E7 A- b7 n - },[](){
; Y( W7 x9 j2 e: @9 V - HTTPUpload& upload = server.upload();
. ` B# T: [/ i( Y p2 U8 I - if(upload.status == UPLOAD_FILE_START){8 Y6 r7 M1 ^7 ]8 b1 x+ t6 |
- Serial.setDebugOutput(true);1 H% f% s) W+ S' R$ Y' J
- Serial.printf("Update: %s\n", upload.filename.c_str());
0 H9 C9 R4 }, J( k0 W8 A7 d - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;' X/ z4 c) c. n, V; r6 V
- if(!Update.begin(maxSketchSpace)){
; a- x/ b. g& H b8 Z - Update.printError(Serial);
" K$ f( f" Z5 X3 x q - }
2 y2 J5 N- @: q3 j - } else if(upload.status == UPLOAD_FILE_WRITE){/ O y% F. ]; [ `( ~4 _
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){$ |" F1 o. t, ~( x4 C
- Update.printError(Serial);
6 j+ e3 I" S" \! F7 j; C4 k - }% ^& ~9 i, L9 { p: k6 w: I$ o2 E w
- } else if(upload.status == UPLOAD_FILE_END){ V0 a) U; o2 R$ M. q$ Z* E
- if(Update.end(true)){
! G3 a( w3 R H# `9 j0 x/ z - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
/ b$ d) t8 v- ^9 A" }2 c - } else {
/ C3 L5 l4 K! {( K - Update.printError(Serial);
# h' ~$ c) I5 R/ N, {+ A8 w - }# @. z. J) u5 H% s# N; O2 G
- Serial.setDebugOutput(false);) V' i- Q. U1 l6 I
- }
3 D" w3 K$ i: E6 B' n- S - yield();# {, N. ~: {! `) l
- });
* x) W0 r9 K1 l, J* ? -
_4 Y5 o7 t/ d: S - digitalWrite(2,0);
& a6 c' ~3 b5 a, k9 r+ d' I - mainAction();
. P S k8 w* s1 E" M* J% h - if (digitalRead(0)){
" A6 g. F/ c" V, v* L( r6 G - ESP.deepSleep(0);9 X7 w! \; t7 C- z
- } else {
* H1 w* I1 v! A7 W; O* I - server.begin();
, n! z7 Q) j! y6 t - }3 G, U: g& X6 F% `
- }
( x( u! a/ W0 I3 r' I2 ~+ J3 G/ h - void loop() {+ d: }1 G+ k; ]6 q! q K8 [
- server.handleClient();
1 X: t' V% C% D/ c" |- U3 a& \ - delay(1);
v4 r! x% I+ o, I - }
3 f9 T# {' S0 w0 d: U: i - String doGet(String url){# @: E; d v: m# l7 W$ B% D
- if ((WiFiMulti.run() == WL_CONNECTED)) {
3 C0 t8 X* M" N* q8 j5 U/ d6 B. o - HTTPClient http;& E! Z( V6 X# }. P% F! z4 A
- Serial.println("[HTTP] begin...");& X: }' ?2 P9 t6 F" p) h+ x& O( m7 _
- if (url.startsWith("https")) {
! H, A4 N. ^9 n( }5 {, [' Y O - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
; H0 M# F) D( F$ c' [6 _ - } else {
# r, g/ b3 x$ D' s( H - http.begin(url);
! P! Z ]1 [( m/ h" W7 L- d - }
) `7 U6 h$ q3 o3 x9 I - Serial.println("[HTTP] GET...");
# G; `% r% d: ?7 c - int httpCode = http.GET();
/ f5 J/ W# Q. |9 c4 G' f: k - if (httpCode > 0) {
& {3 y6 y+ m8 P - Serial.printf("[HTTP] code: %d\n", httpCode);
1 C' i# t3 |! t1 U4 L - if (httpCode == HTTP_CODE_OK) {5 s9 G) a* a) F$ s% s
- String payload = http.getString();
2 [2 W- Q- j P) j - Serial.println(payload);4 `2 g! E$ Q* Y+ k3 Z8 X& g, `
- Serial.print("\r\n");( P+ b2 T8 V, T8 j6 U
- return payload;
- u+ V+ U s8 j) \8 M, Q - }
! n n( G) p% n1 ^- }$ r, c - } else {
* M2 e H0 }' k+ n$ r3 k1 T. y9 h - Serial.printf("[HTTP] GET... failed, error: %s\n",
1 ^' H$ V. K V* H0 Q - http.errorToString(httpCode).c_str());
2 Z" m. v5 H1 _" q# u2 I, u2 t5 S - }
7 ~6 @; ?, @# g/ C. V9 z- \6 b4 z, W0 s - http.end();* E Y& {& f# ? |) A6 Z
- return "";; {! y; _& o( k8 g( S8 F* ?7 ?) p
- }
7 r+ x% N5 R' @% C# P6 y - }
/ _% \( ^: C6 {6 c( R- K1 Q - void mainAction() {
* r) s3 a' t0 t1 t - // 发送请求, h7 @) p* x- i( S% f$ u/ y
- doGet("http://google.cn");( S7 T2 F f! d
- }
8 V$ Z/ y# p" d! r! I& T& O& t
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