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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)5 w: j2 j- S, C. Q6 ]) T- J
- #include <ESP8266HTTPClient.h>7 i- R( p; a7 p4 c/ f
- #include <ESP8266WiFi.h>
) l0 w& B4 @9 \+ a - #include <ESP8266WiFiMulti.h>4 T0 w4 n7 I7 Z: O; q
- #include <ESP8266WebServer.h>( t, |: O* Y# ?. l7 ?
- #include <arduino.h>: T5 B9 q, ^; B1 J
- ESP8266WiFiMulti WiFiMulti;
7 h ]. v8 z" J - ESP8266WebServer server(80);+ S4 q) U) X E7 m# K+ p T1 X
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
: O/ c. i% A* B - ADC_MODE(ADC_VCC);
/ ? Y/ X7 u+ \% o) [+ ]2 K2 { - void setup() {
4 m2 ]4 r6 X. u5 J - Serial.begin(115200);$ ~4 n* i0 ]0 Y3 F0 x
- Serial.print("\r\n\n");
- x( _+ x( e) O - pinMode(2,OUTPUT);
$ e7 r( `5 i5 h! f - // WIFI
6 k1 A1 O6 s8 b8 v p0 H+ v! a - WiFi.mode(WIFI_STA);
( ]+ L' @* {2 t+ J - WiFi.hostname("Sparkle");
4 X* t9 B( X1 g2 c - WiFiMulti.addAP("wifi ssid", "wifi password");
! B+ x& U3 J; o& E! u7 g - int tryNum = 15;
' Q6 e! b1 v" P! j/ d( a - Serial.print("Connect WiFi");
+ T" }( Q$ }2 N8 D - while (WiFiMulti.run() != WL_CONNECTED) {; G+ Z6 a, U4 w5 ]+ j
- digitalWrite(2,0);
8 M* r9 {& T0 `) J8 n - delay(200);
8 s* {9 k, t# M" H( v - digitalWrite(2,1);/ I* @( }, f; y; I1 [( V
- delay(300);5 p1 _; V0 r5 D' b# y
- Serial.print(".");/ H9 D ` ?9 p5 y" e
- tryNum--; R' B! f' w/ y
- if (tryNum == 0) {
z- M# l, w7 q! a4 j. g - // 1min
9 O7 O; q1 U7 q3 ^- r3 G; F5 f! l# Z - // ESP.deepSleep(60e6);
7 o, f* y: {! V3 E8 e+ F - ESP.deepSleep(0);8 n) N2 h8 e! D8 x: K& W: ^7 F
- }
3 u y; i6 [) d; g - }+ Y) p6 D) I' K: @9 G. V
- Serial.print("\r\n");: f0 r0 c9 h3 X
- digitalWrite(2,1);
4 q# J' W, c) Q2 I% L) [% e; | - Serial.print("IP address : ");* i1 \. f1 b% L7 B. X. K
- Serial.println(WiFi.localIP());6 F% t! o8 R9 t
- server.on("/", HTTP_GET, [](){% O* F$ u* Z/ @: H$ g0 G
- server.sendHeader("Connection", "close");2 P9 V7 Y/ Z# G, y# M( v: F
- server.send(200, "text/html", serverIndex);# z6 ^2 p5 ~$ u' T- r* T& Q9 \; B
- });
$ q2 |2 C0 e& u5 [/ _& N+ Y - server.on("/update", HTTP_POST, [](){6 i O. i) E$ f
- server.sendHeader("Connection", "close");
* |4 v! E( e; a. L! a Q, G) }+ K - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");) k: t, h: `& f6 }2 q: o8 y
- ESP.restart();
# T& O# B" Z+ v1 @) D/ d7 C - },[](){( Z# n I/ M, P# N& j
- HTTPUpload& upload = server.upload();
. m# m6 ~2 t0 M - if(upload.status == UPLOAD_FILE_START){
6 O, X* L& z& n; J* p' N+ }' A' l4 Q - Serial.setDebugOutput(true);" E& |! a8 I7 e7 ^/ J% k5 `
- Serial.printf("Update: %s\n", upload.filename.c_str());4 N% V: J0 D. T" y$ a, K0 z# }4 _5 ^
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;8 @* P' @3 i; a: K5 I2 m0 Z; e5 T
- if(!Update.begin(maxSketchSpace)){! L# s0 h* @* ?0 _. [: ~# n
- Update.printError(Serial);- h2 `$ }0 R; B+ u% t, r5 I+ o+ f
- }, }9 f5 c$ D! |7 k4 K$ y
- } else if(upload.status == UPLOAD_FILE_WRITE){: U1 ~/ P. g- z5 n: w: U
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
, a9 q" W; z! T4 s3 w9 r3 E - Update.printError(Serial);
' O! a, k3 y2 i6 ?( N+ N9 c - }; t8 Y( f4 y- ], f0 G' b
- } else if(upload.status == UPLOAD_FILE_END){: w3 c0 [8 x0 k/ W: ?+ p; \
- if(Update.end(true)){
( l5 Q5 E% B/ i - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
0 s$ y# U7 T9 x( D - } else {& p( Y y2 g( D! {, _
- Update.printError(Serial);& i3 E3 o- i9 f# V
- }2 P0 m( Q0 Y( Y7 |3 L7 d: e }
- Serial.setDebugOutput(false);
1 }9 G+ s; D; x - }
/ w/ }5 u. c6 p - yield();
4 k* _: z- R! T' T. Y' @& P - });: t3 w8 E' Y0 n- D5 i, L; l) t
-
5 y: e7 ^' n% y' R - digitalWrite(2,0);
: O! `- b. z% E) i7 h - mainAction();: S; I: N6 s3 K Y* N* ~1 Y
- if (digitalRead(0)){6 P9 P- N# q( ~- I- F5 G
- ESP.deepSleep(0);
- M9 N) Z1 |9 B7 ]. S; ^$ y ? - } else {
! j" H. K) r6 M& r, d) W& A4 N - server.begin();
! |4 k) w1 `" l( R - }
% c2 @ Y6 E) B1 D - }
- e3 ^% ^4 w; r, J - void loop() {
6 |$ p& I7 S) W! }8 t4 r) Y- J9 R - server.handleClient();5 N8 B5 I0 S% v% k
- delay(1);/ k1 g9 v- d5 [/ T% [1 ^, S
- }
7 e! h, j# t! [ V% m - String doGet(String url){/ `# U7 K" o$ g. X7 }; f
- if ((WiFiMulti.run() == WL_CONNECTED)) {
( A# l$ i$ J; k# L. \, V" T - HTTPClient http;, w. z" p+ l3 l; i
- Serial.println("[HTTP] begin...");
% X3 @- `. p Z3 w1 ] - if (url.startsWith("https")) {4 k$ g/ y- I7 X8 F2 h w/ }2 [. e
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");" q) K; H9 ~1 g z! k
- } else {3 h6 Y5 k$ g5 }1 `! ]. s
- http.begin(url);- O+ b. j9 w W6 p3 n7 o, ?
- }3 l' l+ H! Z4 w
- Serial.println("[HTTP] GET...");) v* S0 Y ~# e; Y' `: A
- int httpCode = http.GET();
+ D& B' n% T. l - if (httpCode > 0) {
& I/ k& a8 E: z* V - Serial.printf("[HTTP] code: %d\n", httpCode);) b# }" M9 F0 l+ j3 _2 V4 s
- if (httpCode == HTTP_CODE_OK) {
, B% q( D8 R3 @/ p - String payload = http.getString();1 P+ r! N- I$ m& l9 F, g; A
- Serial.println(payload);
7 p$ T6 O( i7 m1 k - Serial.print("\r\n");+ k1 p+ `3 @2 }- {
- return payload;3 K$ O* U1 T. A& t) R: i
- }5 f( \7 O3 ~& D( S/ i1 e: L/ {
- } else {% K3 a, f. o P2 ^0 G1 P# J
- Serial.printf("[HTTP] GET... failed, error: %s\n",
2 n5 ~! `# ~6 s; S7 J: a - http.errorToString(httpCode).c_str());
0 d1 \/ f" p1 m! s8 s - }2 z6 b. {+ P: I! a1 K
- http.end();1 W1 o3 F% b! b" ^
- return "";/ b8 D4 g- W) h3 [
- }" P1 k8 u) r$ K) R5 ?/ E
- }
; @( l9 ~4 a, @- m8 A+ s - void mainAction() {$ w) c0 y0 b4 h) d' n; r
- // 发送请求1 O/ k( ^" T0 h- O# ^
- doGet("http://google.cn");
" J& I- ~1 L8 ^# B. E9 q0 L - }
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