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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)
# y5 r, G0 j0 n- #include <ESP8266HTTPClient.h>
3 q: E3 f- E- |" R# @, U* O; M - #include <ESP8266WiFi.h>6 t# Q$ L3 f( ^
- #include <ESP8266WiFiMulti.h>" v, @1 y: I, s& g- ]0 f
- #include <ESP8266WebServer.h># D. r1 i. ~* H% C6 a4 ]' @: ?$ m
- #include <arduino.h>. L" J8 l2 F) h3 o3 C% x
- ESP8266WiFiMulti WiFiMulti;9 v9 i8 G4 |# ~" l% E. U
- ESP8266WebServer server(80);- v% J9 b4 @. C- i
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
- V& r1 H8 J& C+ [ - ADC_MODE(ADC_VCC);
0 b4 N X/ j4 R$ f4 Y - void setup() {
3 l. j& K( Q) @% k2 n - Serial.begin(115200); L/ L! m8 W& N8 N4 T5 o; w# U
- Serial.print("\r\n\n");' y, p& Y2 ~2 U/ T7 I# T: @
- pinMode(2,OUTPUT);, H( \. c& F. N2 M1 S0 x9 u9 G' z
- // WIFI
1 p/ u* o' P* a2 v - WiFi.mode(WIFI_STA);4 j7 K b% ?! ^- M. D z1 a m
- WiFi.hostname("Sparkle");
~) L( B$ g/ b7 C/ D - WiFiMulti.addAP("wifi ssid", "wifi password");5 K7 u& y8 t0 m6 |3 `& Q
- int tryNum = 15;
& s* [" W; z/ c7 { - Serial.print("Connect WiFi");0 w2 k$ h! q3 K
- while (WiFiMulti.run() != WL_CONNECTED) {
- x( A6 C/ Z, Z! p9 \9 E$ \ - digitalWrite(2,0);
- z5 Q8 S2 ^2 C+ _/ |, H - delay(200);
$ j g. r5 s- U" ^# m - digitalWrite(2,1);
+ E( [) B& I0 g. v& E* ] - delay(300);
; ^! G5 u: e B+ I# r( u0 Z% ~; v - Serial.print(".");
6 P5 R, T" [8 J0 g) p" } - tryNum--;0 i( e3 ?& l6 |
- if (tryNum == 0) {7 q$ [2 O; Y# k b F! {: M
- // 1min
5 q5 B- ], \6 H, b - // ESP.deepSleep(60e6);; G* D- t% }; R. A C% ]7 p. z
- ESP.deepSleep(0);
) ~1 L- {* h: Z$ A. s. M: C - }+ @) u0 c, y8 Y6 B4 Z
- }
1 z& f) H; ?* _- I8 q - Serial.print("\r\n");) Q0 H- _. U' @$ H! M. G, |
- digitalWrite(2,1);. R1 C2 |4 h8 J) J
- Serial.print("IP address : ");
$ I9 O* z$ x- Z& c7 }; Y" w - Serial.println(WiFi.localIP());/ y$ q1 u7 E' e8 p# ?( Z. F+ D
- server.on("/", HTTP_GET, [](){2 X% A$ ]. t5 Y% Z v
- server.sendHeader("Connection", "close");
: I4 H( U* v: @3 V - server.send(200, "text/html", serverIndex);& w% \' |% G, p" B5 e
- });
2 `5 M; P- S* d1 O& A* t" H - server.on("/update", HTTP_POST, [](){
" P% m! D! `" Z$ j; l1 h9 { - server.sendHeader("Connection", "close");
( Q, \5 N& s6 K- x) W; m2 ? - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
' O; k4 K7 A1 b* [ - ESP.restart();
' ~' r# N( R; `$ m8 X5 q - },[](){8 B0 u o4 P9 U6 c% |
- HTTPUpload& upload = server.upload();; ^# c" Q z3 ~* [. s
- if(upload.status == UPLOAD_FILE_START){
' `3 N8 N( N" N' T9 ^ - Serial.setDebugOutput(true);' s% W7 M* D& _% v& ^
- Serial.printf("Update: %s\n", upload.filename.c_str());
! A! R6 q9 E8 U. d" e$ ^ - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
5 U2 |% \4 q* l1 n2 T* x - if(!Update.begin(maxSketchSpace)){% g' j% P- _# @# C
- Update.printError(Serial);& g' W3 x5 b- r9 H6 N
- }- r5 P7 T6 Z; A. i( M- ^) T; _
- } else if(upload.status == UPLOAD_FILE_WRITE){8 w, j0 c- l/ _- `
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
( z% V% {! X, E4 x/ z2 w7 ~ - Update.printError(Serial);
) m: p% k$ S, k5 {) }2 I - }
6 ?- m& ^: p0 I6 ~; V9 i - } else if(upload.status == UPLOAD_FILE_END){: B+ {7 l1 ~( F5 P! X& e
- if(Update.end(true)){
% w. D) N' E/ T! X, s7 ~, s1 m - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);; b; @( h, r) c* u& }
- } else {5 }5 V. ^- a" o. Z5 f8 U: f
- Update.printError(Serial);
5 O3 O/ }! A( p$ b+ u5 L0 o3 Z8 C - }
0 i7 W J5 e) p' ^ y4 x - Serial.setDebugOutput(false);
% o6 z& I0 y0 P& U# ^ - }
7 r T0 f+ K. n2 P5 v; P8 Z. W - yield();. ]1 P4 H7 K0 y* @( G0 w0 X
- });; m$ T% Z2 _) `. e* r& R; T. k7 s% a
- 2 Q3 v, e1 ?7 ^
- digitalWrite(2,0);
" R+ |$ W0 R R% F; J% ], i3 ?: ~ - mainAction();: B2 D! I+ D/ r# ]0 R0 b8 N
- if (digitalRead(0)){
2 l% i3 o$ P0 B6 g - ESP.deepSleep(0);
; h3 X4 p# L3 \. _* ?1 F, d - } else {/ s9 o) U ^$ F1 N- ]7 Y/ h
- server.begin();6 F0 u- B5 H7 `8 l* l1 L# P1 w
- }
* ~0 K8 J; z* [% ]4 x7 f7 I - }5 |/ f8 q3 Q) w& o0 Y Z0 l( m" g
- void loop() {9 ~# w4 @/ @' Y
- server.handleClient();
, S& E- z2 d9 D4 Q9 Z' }: g - delay(1);8 Z0 ^9 l/ ]- h4 I
- }& |' j3 _8 o9 P) A# ]! [
- String doGet(String url){
" }; |1 m" K5 ? - if ((WiFiMulti.run() == WL_CONNECTED)) {
) I9 @ ^, [& r8 H: N1 F - HTTPClient http;
$ H+ V u) ~4 k$ }. j - Serial.println("[HTTP] begin...");
) U9 ]9 @1 ]( c4 w: B - if (url.startsWith("https")) {
# n6 W2 S4 e9 w2 Q9 G: h - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38"); @ M. E! d6 X' i" A" \
- } else {4 @- A/ v8 p3 ^; A6 H: Q7 s6 H( @/ ^
- http.begin(url);
& U% e0 ]/ j, L% p+ W# ?6 [6 T - }
9 o2 ~) g/ ?7 F- V) [ - Serial.println("[HTTP] GET...");9 ? [" v9 \; N% W2 i! K
- int httpCode = http.GET();0 A& x# f5 x" d. l& r; Q
- if (httpCode > 0) {, R p. [# F: Z( w' h: Q
- Serial.printf("[HTTP] code: %d\n", httpCode);
! b7 ?3 o# x1 v7 A$ P7 }+ g! H( w - if (httpCode == HTTP_CODE_OK) {
/ ]& t" C: x: N6 e* D - String payload = http.getString();) ^$ R2 t7 T8 K9 S
- Serial.println(payload);# [$ j: ~9 d: J8 P
- Serial.print("\r\n");. z' `- v4 D3 x6 Q: G/ h
- return payload;
. Y+ U9 i2 E4 ]5 X- w+ E - }' n8 S- _* l5 K, F1 X3 S7 T2 @& u @
- } else {; B2 ]3 g: R' l1 T
- Serial.printf("[HTTP] GET... failed, error: %s\n",
, J, n* m: V4 i( h" x7 P - http.errorToString(httpCode).c_str());& t2 o; u) Z* `
- }
* A8 T3 h, Q5 D; Y% e) n) e - http.end();. x0 v" a$ O3 } [/ Z
- return "";
! I5 O! g, \ ]6 N# H+ |) _ - }0 x9 S' f) {$ G2 S1 c
- }
. h, I- M+ `# Z6 j - void mainAction() {
- n0 S2 q0 o6 D4 X( e. ^' g7 V% Z% X H - // 发送请求
1 R* K; u( Y; j4 e2 \8 e - doGet("http://google.cn");4 s$ M+ l0 Q8 ~. G+ Y5 O! D0 \
- }
5 F* r e, g ~ b
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