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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), t$ F( z4 K! I6 T; K8 L- s
- #include <ESP8266HTTPClient.h>
, P& k0 e/ q. C; ~6 X - #include <ESP8266WiFi.h>
L! s! x" K5 p: @7 t - #include <ESP8266WiFiMulti.h>% }' b; A; F% |, k
- #include <ESP8266WebServer.h>% ~) z, X4 S; D' X/ a+ k9 v
- #include <arduino.h> K# }% e3 s! K' K0 |
- ESP8266WiFiMulti WiFiMulti;* n5 e. u* W1 P- S; P/ J [
- ESP8266WebServer server(80);/ |& W) n. L% C7 G3 q
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
+ S& Y. W; F7 H - ADC_MODE(ADC_VCC);
$ d: c; c8 g O8 I5 T B& E$ B9 S - void setup() {" G* Z4 z7 S# `5 t8 I8 Z$ U/ C
- Serial.begin(115200);
/ b: D1 _8 j, W5 v3 K( ~ - Serial.print("\r\n\n");" u% [; t( i) A2 X; c: F
- pinMode(2,OUTPUT);4 V1 Q: X5 W# U# i; d
- // WIFI
* j( l6 f `; {" V o+ ^2 ` - WiFi.mode(WIFI_STA);8 U k8 Q6 v! C" J" Z
- WiFi.hostname("Sparkle");
$ n( w: y1 |, Y' U# q7 d - WiFiMulti.addAP("wifi ssid", "wifi password");
! P) `6 d4 ]6 u) N3 B! C - int tryNum = 15;
# W" o3 }! z. b - Serial.print("Connect WiFi");
$ q0 }5 _9 k; ?0 b. u - while (WiFiMulti.run() != WL_CONNECTED) {
, {$ _% p! C7 A1 Z+ T! f ^4 a0 B - digitalWrite(2,0); ~ h9 z5 ]: U/ T4 s7 b
- delay(200);% p/ ?2 F) V9 R0 z4 n
- digitalWrite(2,1);
# ^7 e4 v, x. Z$ { N- v$ c: }' E" z - delay(300);/ Y: W8 A4 a8 [: r: N
- Serial.print(".");) A* h' `/ U6 H5 k
- tryNum--;' z4 \/ a. N0 e: e) } i
- if (tryNum == 0) {8 O, }+ N: s; i' ]3 t
- // 1min
: E) [% @; n6 U - // ESP.deepSleep(60e6);
8 c8 r+ |* L" a2 j) [+ s) L - ESP.deepSleep(0);
+ o/ _3 J3 D+ |6 C7 e5 s4 s- Q8 D - }
, o" X7 o" F) f4 o* X - }3 Z4 W b B# Y0 q
- Serial.print("\r\n");
2 z2 u# t+ x8 C" N+ T0 @/ c - digitalWrite(2,1);% ^* h" ?0 U% H+ h
- Serial.print("IP address : ");" ?) ]9 i; {% h" h+ R1 Q" L" ?% U* v
- Serial.println(WiFi.localIP());2 _: ~) N- m3 V3 S* b
- server.on("/", HTTP_GET, [](){0 ?1 @4 ^( |, ]3 i, Q6 w/ r
- server.sendHeader("Connection", "close");; ?4 n% [4 q% Q6 ]+ B
- server.send(200, "text/html", serverIndex);
* _# I8 h' _0 Y5 F - });. m! @- V, Q/ L. R, {* o( X& m( m
- server.on("/update", HTTP_POST, [](){
- P1 F0 G; @6 i& y0 Y" \0 ]/ X7 r - server.sendHeader("Connection", "close");( J" z! E, @' D4 O) g* M
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
b- L/ H/ j4 c, [. t2 n4 Y - ESP.restart();
7 ]1 H; s$ F. ]# k( R4 \8 F - },[](){
& E/ }6 ^' Q/ j' ]* \ - HTTPUpload& upload = server.upload();& o8 D3 O2 |8 D$ J5 h
- if(upload.status == UPLOAD_FILE_START){
' x* T$ V( A0 `) r# K, @ - Serial.setDebugOutput(true);
# _. w3 H. b( @! p/ G# J# u - Serial.printf("Update: %s\n", upload.filename.c_str());1 S2 D+ H& n/ j6 [/ P4 e
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;" v X; S4 S7 ~' ]) L9 B3 j' k# c
- if(!Update.begin(maxSketchSpace)){
) s6 K* D/ ^. c4 w* T - Update.printError(Serial);
; g' o h9 s+ n, `' \ - }
. [( B4 O1 W, V* a - } else if(upload.status == UPLOAD_FILE_WRITE){! M/ K3 L' B' O" j1 ~
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
# p/ t8 z- D" h. d3 g. q- C - Update.printError(Serial);
* e! |, |0 B: b0 j" {& p4 j - }
+ K* j! z. I6 w( j - } else if(upload.status == UPLOAD_FILE_END){
3 l8 |0 c& ~. L: v8 M - if(Update.end(true)){
" z& n9 {9 \6 n% W/ c - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
, X8 ~! p( Y) @, [$ P" z6 m - } else {
7 q M/ f/ ^9 _3 x5 j - Update.printError(Serial);
6 {9 |: k' K3 u( ?: v* P$ F% m - }
" L, e9 l$ L$ e5 H) c) t# ~ - Serial.setDebugOutput(false);$ W* s* X4 k& o E- O
- }
: i1 X+ B% w% ]8 V2 z9 r- e - yield();8 a- @+ w& T+ o
- });- N+ l- e. N0 Z( o7 v1 i
-
& \0 X# v4 Y7 l- c( w/ c - digitalWrite(2,0);- ~. i/ Q( I$ k* j( g
- mainAction();
% ~# _8 p$ N1 b* W" _* ^& a5 d - if (digitalRead(0)){
& T; r P6 {& C+ t - ESP.deepSleep(0);' A! |' X2 F/ y" z0 a2 K7 @0 S( I
- } else {
- {2 \5 z7 a6 u; k! J5 F( v$ X - server.begin();2 Y3 V, u3 J5 n( @0 S
- }
: e8 j+ g3 ^- R @ K% U - }
; }# l( g1 w. Z5 D - void loop() {* U5 d, `3 h6 R- z
- server.handleClient();- J! [" Y2 | h) P. N1 \# Y! t) N
- delay(1);4 @8 T7 G" |& l% v# a
- }0 c* X2 q1 \7 D/ {, K- s1 u& d
- String doGet(String url){; r$ z9 M/ j, g1 R. H" a4 h1 Y
- if ((WiFiMulti.run() == WL_CONNECTED)) {
) _( T* D% z* {- E - HTTPClient http;) y: E8 b2 v' n2 E! c9 b# i
- Serial.println("[HTTP] begin...");8 Q4 g$ O0 v, b( `% u; H
- if (url.startsWith("https")) {
! h1 I. Z0 `% K1 w0 A7 H$ l - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");: Z. D2 y0 L0 E* y6 X
- } else {
. V# r, v- `# Q1 d3 L. i - http.begin(url);; C* j8 ^1 E; E) S$ {0 f5 Y
- }3 A& `# X0 n& {
- Serial.println("[HTTP] GET...");
+ r2 t" p5 x2 j - int httpCode = http.GET();
$ |9 Q1 H2 S# y s; O- |& m - if (httpCode > 0) {
$ l7 A8 E/ e% v( C! F - Serial.printf("[HTTP] code: %d\n", httpCode);
* u8 |0 s; Z% P - if (httpCode == HTTP_CODE_OK) {2 f K5 E" ^2 d6 T
- String payload = http.getString();+ P6 A9 Y0 E, h# ~; B
- Serial.println(payload);
% y$ B3 |: K. X& p( [6 C9 g - Serial.print("\r\n");, ]/ n7 i# ] {: W- @
- return payload;0 I5 l' J5 O4 u& K
- }
; R, ]9 q& r8 s/ t+ Q - } else {
- \% |& s( x+ M5 T o - Serial.printf("[HTTP] GET... failed, error: %s\n",6 E$ B b$ {. l2 S; ]3 k) [
- http.errorToString(httpCode).c_str());) h/ |* P0 A5 j7 c2 F& z
- }- }: ~/ `4 s: H7 `+ T
- http.end();
* J- P) c$ A: e' l5 Z, A- H. M6 O - return "";
" q% ^. w% t6 o$ y& T0 v# F - }
! p, W* h V S0 |$ w - }
3 _% z% L. l4 M# F2 G - void mainAction() {' x' M! p/ e2 ~0 J Z
- // 发送请求
1 r2 T: W8 C& F" D/ l, D - doGet("http://google.cn");
5 g/ H. k' P9 B4 B- P5 l! c" D/ [ - }
3 J- J' a& v5 x- Y( q
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