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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)
f, Y0 E0 ~# s5 z- #include <ESP8266HTTPClient.h>
! w) Q- J7 a1 t, g6 l8 c( z - #include <ESP8266WiFi.h>
* c! k" {. s, i% d) z - #include <ESP8266WiFiMulti.h>
8 D( K `) [5 |- d - #include <ESP8266WebServer.h>
; v$ D* b( @; B$ S# m- Z6 C! I+ u - #include <arduino.h>, ~3 f( }* c/ C# X1 ^7 F
- ESP8266WiFiMulti WiFiMulti;
* m! U0 l" B k0 T* D3 I- w - ESP8266WebServer server(80);
, d! P) x+ k+ W6 }0 {8 R# v& ?9 S - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
0 I1 b' Q7 L1 f: h; T4 P - ADC_MODE(ADC_VCC);$ x6 C" f: o, {" u' X& E J; W
- void setup() {* C0 e* M( _; N: Y
- Serial.begin(115200);) Z) ?% z& z: z# } K
- Serial.print("\r\n\n");* Y5 a8 c, n6 G3 |, C* C# k3 V0 n
- pinMode(2,OUTPUT);
0 M4 m2 A: f' O7 W - // WIFI
9 z! }3 h8 ?) d" ]8 f8 ] - WiFi.mode(WIFI_STA);
# |, `" ?5 z. \0 y! q N& Y - WiFi.hostname("Sparkle");6 J2 q- [! y- x7 `9 f5 A. k
- WiFiMulti.addAP("wifi ssid", "wifi password");9 Z" K- |" B1 e& x. ` _5 e u
- int tryNum = 15;
; i% Z E2 U) K - Serial.print("Connect WiFi");7 A* v% O' w; u
- while (WiFiMulti.run() != WL_CONNECTED) {
2 M' c4 p: K- l$ `% s& q - digitalWrite(2,0);; |: G, p! o1 m/ E# ]4 T& @' G8 o
- delay(200);
+ o% `9 t. n' n; a - digitalWrite(2,1);
' ?( w3 P' n# e+ P1 Y4 t: F6 G - delay(300);9 G) T3 m5 _9 ]' h, l3 A! Z
- Serial.print(".");
+ Y7 D* ~$ `3 } - tryNum--;% N5 S# t& p. T8 C _9 `
- if (tryNum == 0) {6 b2 }7 J, ]- k( f' M- V' s
- // 1min2 Z2 K3 X: B( l% o- Z9 K$ w' [3 e# }
- // ESP.deepSleep(60e6);) e' _9 {1 C! ]* k! O1 @* K! Z
- ESP.deepSleep(0);
6 c* ?* X( }7 j' x: Z - }
; H; t& f8 N7 { - }
g# X: \& F$ x6 R9 f - Serial.print("\r\n");
* e9 F+ G; a- X6 c' y0 J! Z. ] - digitalWrite(2,1);- k3 k/ j$ K5 W$ W" ~7 a. E
- Serial.print("IP address : ");; Z) H; j/ C6 `6 D; i2 Y. g# W
- Serial.println(WiFi.localIP());
# _( a! D- P* j+ j J8 s J - server.on("/", HTTP_GET, [](){# J. Z! g0 T! ]# l1 Q" X0 S. u& X
- server.sendHeader("Connection", "close");
( ^* }; h" d' {. V) L/ ` - server.send(200, "text/html", serverIndex);( \3 Y2 t( A/ Q
- });
) ^4 w Q4 C o! M5 i" t - server.on("/update", HTTP_POST, [](){9 I/ P: p; t( z& O* }. e; D
- server.sendHeader("Connection", "close");
' }/ v7 S0 S7 N - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
5 g2 B: T: D. ?! F' [ - ESP.restart();( k( }1 H8 e, Y" k
- },[](){" c8 J. Y# ?' D. Z( k' ?7 r& I
- HTTPUpload& upload = server.upload();( `1 z/ p7 a1 y
- if(upload.status == UPLOAD_FILE_START){: O- M$ |$ e+ N0 I6 [
- Serial.setDebugOutput(true);1 ^- _( J. p6 v4 k
- Serial.printf("Update: %s\n", upload.filename.c_str());$ n" y0 r$ w. g" R- O0 q' w
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;& r1 K4 |0 G0 X( L0 T
- if(!Update.begin(maxSketchSpace)){ k8 z- O4 H9 w; c+ r
- Update.printError(Serial);
( H. K3 e! j: C0 V, P6 K+ A+ U' l - }
, k4 C/ j5 X0 R$ |' \0 f - } else if(upload.status == UPLOAD_FILE_WRITE){1 v9 s$ D. y7 |: f# Y9 k" X
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){" e# s( v5 ^/ N) F$ I: ^9 ]* l
- Update.printError(Serial);# j5 B* G6 J. I
- }
4 O; Z* f ]& \; O3 X9 j/ W - } else if(upload.status == UPLOAD_FILE_END){! m" Q; |% g5 ~7 o, n- T& I1 L
- if(Update.end(true)){
% P# x0 @# w" q" S; I; }$ b1 @ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
3 d) p5 u. d% @0 v& N8 ` - } else {
! w! B$ M% M# c" X- H - Update.printError(Serial);
1 A! I; C2 i6 H2 M Z+ v- i - }3 ?" ?' V$ M3 Q0 A/ d! O0 U
- Serial.setDebugOutput(false);
$ n. _$ N* v8 j* ~+ U2 ^ - }
E# b1 z1 N* Y - yield();
8 w$ _8 ?' H1 c# ]2 ] - });
+ h7 y& V5 Y+ S+ O* x8 D -
- u) D$ d0 g0 a; Z. t+ F$ c; i - digitalWrite(2,0);2 V! W, ^: g- }
- mainAction();; o# d! F% v& C0 z- k
- if (digitalRead(0)){
+ @1 D3 C8 K9 P: D$ a - ESP.deepSleep(0);7 |. D; \3 c( S( S" [
- } else {, f1 H3 a9 G \
- server.begin();+ J$ N- @( h+ A. v, M
- }+ P: Z9 ^9 O) V0 y4 t. d$ }
- }3 U5 U5 c( R# o! c8 C
- void loop() {
" l U: A9 b" Z7 U/ { - server.handleClient(); _: l9 ~/ C' ~0 \! V8 Z" {
- delay(1);
9 a3 E% [- q& T - }8 `/ r0 w5 F/ m5 @
- String doGet(String url){$ t+ g" H$ y( ?
- if ((WiFiMulti.run() == WL_CONNECTED)) {8 N4 t8 O/ v* }" J* I9 C" g
- HTTPClient http;
& ^0 H6 V* p# W( Y - Serial.println("[HTTP] begin...");/ ^6 a* V) G' j2 s. w
- if (url.startsWith("https")) {
, f0 R% l( Z8 B9 k9 m - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
6 d5 ]& `3 C% v! S% E( a! A - } else {2 N1 ]% W5 A; {4 [
- http.begin(url);
& f9 C5 Z$ q' k* j+ Q - }
/ u. y& k: e2 X - Serial.println("[HTTP] GET...");
! V$ \% W% n; |. ~# Z6 V/ V - int httpCode = http.GET();
9 z) Q) I. O* J/ i: U. _9 O( @ - if (httpCode > 0) {
! U9 m; P6 D* j1 s' X - Serial.printf("[HTTP] code: %d\n", httpCode); \- l; }4 y: }& }* p) b9 d
- if (httpCode == HTTP_CODE_OK) {) Y7 `) f2 j7 Z# e! g
- String payload = http.getString();
/ a3 w8 K8 U# {% E# x( ?1 T - Serial.println(payload);
/ `% Z: [ K5 \6 T - Serial.print("\r\n");
# g% P$ s! [4 s6 _# K) l - return payload;! U- j+ U7 i% K! ?) K4 l
- }
" o" u# h1 |" |/ N! J- G - } else {
/ T. l5 v' w' v" F7 R - Serial.printf("[HTTP] GET... failed, error: %s\n",; q) d0 v& ]+ _/ }
- http.errorToString(httpCode).c_str());. Y) @6 R7 @4 V ^
- }
* s! p# `3 ~/ d) n! @' K - http.end();. I5 I! U/ }' [* F
- return "";" o* i0 K4 y8 h# p# G
- }
% w; i7 _ g7 q: v - }
, ~8 q5 t; e, [5 L# w- i/ K$ L - void mainAction() {
5 O% H% O" }1 q1 m- u - // 发送请求6 a) L& u; d: ]% L! F
- doGet("http://google.cn");2 u$ G) X$ D( J- G
- }8 F% f3 L# `& \" u
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