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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)
! ]# D. L0 M" ~) F* y( v- #include <ESP8266HTTPClient.h>) f r5 G" G" i% U
- #include <ESP8266WiFi.h>
+ ]' L! D+ s) [8 r - #include <ESP8266WiFiMulti.h>
- O m+ p8 Q) y) u0 ^ - #include <ESP8266WebServer.h>
5 y0 X4 _2 O$ B - #include <arduino.h>; a5 v) d" j/ a9 I, ^# l. X. M1 z
- ESP8266WiFiMulti WiFiMulti;
) W# I' u: y- @9 S3 E' K- R - ESP8266WebServer server(80);
' G2 U0 {1 u' ~4 K - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
, i; _6 h! Q1 L) [ - ADC_MODE(ADC_VCC);! u" I- u# b- X# p
- void setup() {
1 X5 x [$ [2 I" B7 c - Serial.begin(115200);7 ]1 P; ~- X% u" F- n1 ]& D+ T
- Serial.print("\r\n\n");
* v. {; t- o' s5 x* g- G - pinMode(2,OUTPUT);
+ C( G# x/ D( C* M' C - // WIFI
, l- ?: R, [6 d7 s0 y* v - WiFi.mode(WIFI_STA);, c, ^* B" k [$ w9 @2 T
- WiFi.hostname("Sparkle");
$ E1 f0 B( c0 ]$ Q' b+ P8 `) t+ Z* W - WiFiMulti.addAP("wifi ssid", "wifi password");% J9 S9 t& h- {* O& p+ N. W
- int tryNum = 15;1 L" H. \- p7 H1 D" r& X8 B
- Serial.print("Connect WiFi");; {( J0 ^/ u `8 W0 J* ]; q
- while (WiFiMulti.run() != WL_CONNECTED) { }) O8 r' a, y r/ o G3 Z' e
- digitalWrite(2,0);
; D& w( M+ l+ M5 N) d S - delay(200);
/ Q" f+ z' M3 U% Y3 b - digitalWrite(2,1);
# R8 k( P- e) X3 p/ J0 ` - delay(300);6 a) h: Y5 V' o: i
- Serial.print(".");, s. [2 P I# M( `3 w. D8 z! v2 K
- tryNum--;8 Z4 D% @+ W% q, |% \# ~$ _
- if (tryNum == 0) {
0 G" i: z0 F* |3 }4 c6 k) [7 v" a: R% G - // 1min
4 {$ q* `4 N/ g - // ESP.deepSleep(60e6);
8 b! w4 S) A; R. L; \2 v; j" ]' L - ESP.deepSleep(0);
' |3 ]! a& [& U) B; @ - }6 h* g" q. C" ~2 d7 {
- }: T! A6 n& W* M+ e
- Serial.print("\r\n");
! r2 q8 ^, i" y D5 ?8 G% o - digitalWrite(2,1);
9 h# ~) O$ Y7 {. i - Serial.print("IP address : ");
$ s. P' k K' R: A: V4 u% }, [ - Serial.println(WiFi.localIP());
! a( p5 j: l/ @ l4 [& F4 d% _ - server.on("/", HTTP_GET, [](){7 l! x. y3 e1 W* l# x# g! L
- server.sendHeader("Connection", "close");0 b% P$ ?2 ^1 M ]9 E( l% G
- server.send(200, "text/html", serverIndex);
1 \& s$ Q6 u/ F% U; E% V - });; f) ~9 c+ \, g |7 l
- server.on("/update", HTTP_POST, [](){
3 M* |- X$ i; \1 o8 z. T% ] - server.sendHeader("Connection", "close");
( E; ?1 {5 ^3 x# N - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");, ?* R8 |& G7 X( o+ K3 s
- ESP.restart();7 U2 p) ^* Q2 R: Y6 D8 F5 }0 N
- },[](){$ N7 ~/ F! \8 a1 x- [$ {7 K
- HTTPUpload& upload = server.upload();
; J. p5 |% y3 I% c - if(upload.status == UPLOAD_FILE_START){) d6 {: s. {. o, }" |
- Serial.setDebugOutput(true);( T: n4 V0 X% I3 t% \ S' y, D
- Serial.printf("Update: %s\n", upload.filename.c_str());: C( w; G( J* w3 n) M' C' Q4 j
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
: o( v" y! U. S+ R8 f - if(!Update.begin(maxSketchSpace)){% b. b9 q6 V# _. |# v
- Update.printError(Serial);; _8 C: q% B: ^0 @$ E
- }% f: P7 p9 C; x8 {8 p4 s
- } else if(upload.status == UPLOAD_FILE_WRITE){
+ Z0 u+ j" o) | - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){" L, Q% U7 k$ u2 d2 B% f8 {2 R
- Update.printError(Serial);1 c' y0 g0 k: A% L. s: P5 |
- }5 q% `( o0 ^; `1 Q) j5 |: D0 C
- } else if(upload.status == UPLOAD_FILE_END){: y: Q/ x9 X/ u; O& p* v2 t
- if(Update.end(true)){" L& N0 G3 y5 _ f
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);# K' s& p* w1 R$ s% V
- } else {6 _* V- X* r& l
- Update.printError(Serial);
2 i m( X- m- m3 F - }
$ R6 [6 _5 t3 o - Serial.setDebugOutput(false);
# m$ R7 e" U1 V$ x - }) G$ N; K8 z- s- j; X2 M
- yield();
8 ^( x5 Z. c4 N* M - });
6 t/ _" G8 D& k9 V7 O( C7 L3 ] -
% d" M' @/ t5 v+ z% u" K1 u - digitalWrite(2,0);
* h# r0 N: @* ]% `0 O) w) `: w - mainAction();
* \, p/ h( n0 n z6 _ - if (digitalRead(0)){
# U, V- V* c, J) W9 g - ESP.deepSleep(0);2 G( r; b: {+ m% o% K
- } else {
6 d0 u$ h f8 A) t7 ?& G - server.begin();) r, X8 H$ L/ M- ]0 {: n4 \1 Q# s+ G0 p/ G
- }7 f( L- ]1 l @# U/ {
- }( Z! o6 ^: l2 V
- void loop() {- t3 ~# Y# r& M7 b( Q
- server.handleClient();
6 W$ v# x" K; X; n% F - delay(1);
7 k, N- D% e0 U) @# { - }
; s" p) L' L# W f& j, k, K - String doGet(String url){# x% R; T4 G0 G2 R% A( K/ Q, o$ q
- if ((WiFiMulti.run() == WL_CONNECTED)) {
u0 D9 w( | J0 P/ p# [9 U! G - HTTPClient http;8 J, y$ y: L$ ~# w( ^
- Serial.println("[HTTP] begin...");- R2 H2 c6 {2 m% \
- if (url.startsWith("https")) {5 g! u5 k1 |, k$ r
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
# ]9 E# q" Y( x) ~( D - } else {; X# b) B/ f( P4 d- Q
- http.begin(url);
% k# P$ o/ R! }& Y6 F+ d' F - }8 U u+ s4 ?& Y K$ T- J) m ?8 ~
- Serial.println("[HTTP] GET...");
2 J' O7 c" t8 V6 I, C - int httpCode = http.GET();4 d. d* r# h! T b/ B7 n1 H8 @" N0 T
- if (httpCode > 0) {$ Q/ _- Z& \6 e5 D/ ^
- Serial.printf("[HTTP] code: %d\n", httpCode);
: k/ @0 \# e$ ]4 X: B2 C8 d6 e - if (httpCode == HTTP_CODE_OK) {
7 t# o; ^2 L' i0 v1 C" u* V - String payload = http.getString();( ?: l8 [8 m7 t3 D8 h
- Serial.println(payload);1 s, R1 p! N$ Y3 d2 [: a o% m& S
- Serial.print("\r\n");
f2 J9 I, E- V - return payload;
7 `6 L. m% x/ N- \- G* V - }
+ T& |. b" b% w* U/ p0 Q! f/ M) g: y+ e - } else {* C4 k( D2 }8 x. N
- Serial.printf("[HTTP] GET... failed, error: %s\n"," w3 {1 i6 F0 o- O7 t
- http.errorToString(httpCode).c_str());
( Q3 ?, ]7 S4 R1 l) Q% p - }* K+ |. K3 _) ~: x" V
- http.end();
" x& I% B9 J9 @" B2 c - return "";6 [" R# R# p6 l1 f3 {) B8 g
- }$ }6 b; F4 q8 i# b1 ?' s& {
- }
+ |: P: w- R8 w3 D - void mainAction() {0 z9 E1 P" z# S' k
- // 发送请求: v3 r8 P c, n$ e9 r
- doGet("http://google.cn");( A' N; y6 q0 S8 `1 E
- }& E3 V- [3 }2 w& d
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