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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)
( r6 U# W! G3 u+ b" A- #include <ESP8266HTTPClient.h>
* c& ?3 Q" D6 u! K8 M3 N7 q5 }& a - #include <ESP8266WiFi.h>% B8 j# G! J: C; t! A% m+ I$ ~ D7 g
- #include <ESP8266WiFiMulti.h>
$ y4 ]2 G6 q1 m1 P$ ?1 @/ Q: Z - #include <ESP8266WebServer.h>
$ |% S9 @% @; g - #include <arduino.h>
% w; G7 j7 U$ b6 E! u% E/ v - ESP8266WiFiMulti WiFiMulti;
: s% |" q6 f" f/ n8 b3 ? - ESP8266WebServer server(80);
+ r1 K7 K4 ~5 ]7 s8 x - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";# L$ v, e" a" R3 Z( m
- ADC_MODE(ADC_VCC);# h! I6 E i" d8 D
- void setup() {) s8 A3 \' n% A3 O; l3 |
- Serial.begin(115200);# C6 v! Y9 C0 W* V: N! Z" g$ j( D
- Serial.print("\r\n\n");$ m; D4 ]$ q, H' Z( s
- pinMode(2,OUTPUT);
% k8 r* `: E5 U - // WIFI
7 |; b: t: Z' O' W& H+ S$ m - WiFi.mode(WIFI_STA);
6 q# L1 q' Q3 L# F% d$ L, }' d9 V - WiFi.hostname("Sparkle");+ p2 G. L [' k4 V& e
- WiFiMulti.addAP("wifi ssid", "wifi password");
' z$ N, H ~& i& n; d - int tryNum = 15;
' [$ @* C6 K7 _9 \1 Y3 c% y - Serial.print("Connect WiFi");
+ ~$ k& d' L0 G# S2 P - while (WiFiMulti.run() != WL_CONNECTED) {
; X0 D" Q( z* H7 U! A& k* N - digitalWrite(2,0);( d) U; n. l3 u2 w" T, s
- delay(200);2 W N" M; a4 k2 W$ K# u. z
- digitalWrite(2,1);
0 B- f. a+ a# Y: f; c" j - delay(300);
0 | t: g& {( [3 g4 x0 x - Serial.print(".");( E1 V7 Q+ q. t$ _ K* V( |
- tryNum--;
* K* y% J4 [, A - if (tryNum == 0) {, u0 @' B; Q6 p! L
- // 1min
+ q! C+ R6 G: x' ` - // ESP.deepSleep(60e6);0 _6 W, F5 q( Q5 V* R E9 `/ E
- ESP.deepSleep(0);0 E5 N2 w' N" v8 b% \
- }
" K/ c0 Y* n( H7 h2 p# w5 V' y - }
4 M3 ?: L; V( ]/ C" A - Serial.print("\r\n"); C' o1 n) l1 @ x: r
- digitalWrite(2,1);0 x# Z8 [+ E& e, h* c8 [
- Serial.print("IP address : ");
3 g7 B- }7 H( K4 w) c9 L! j* _2 L - Serial.println(WiFi.localIP());3 X) ?# l1 w7 K8 x5 a4 ~
- server.on("/", HTTP_GET, [](){! P0 B9 ^. M; B% B4 a+ d& d# h
- server.sendHeader("Connection", "close");& J6 S. W) e' | x1 [
- server.send(200, "text/html", serverIndex);
) z* C. n: Y) T' F6 n* { y! \ - }); b( x0 Y1 N6 K' \! j- {# R9 O
- server.on("/update", HTTP_POST, [](){
, Q4 _7 ]) k$ p1 h2 {' U - server.sendHeader("Connection", "close");( T% N6 \1 S7 M
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");+ i7 I, B& H0 E+ [4 d# R
- ESP.restart();
2 ^1 U' i3 Q! i - },[](){
) |! C- `0 x, g) x2 G - HTTPUpload& upload = server.upload();( n% u7 o/ g% [" P) H
- if(upload.status == UPLOAD_FILE_START){
" Y" C8 t( S X0 M( Z - Serial.setDebugOutput(true);3 ~& B6 C* l2 h9 a
- Serial.printf("Update: %s\n", upload.filename.c_str());
9 N, R- i; j/ k& V) o# X) d - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;7 V/ t5 d; u9 a5 b
- if(!Update.begin(maxSketchSpace)){! {7 a! p+ M' D# z! h' R
- Update.printError(Serial);
. b* l2 c8 ~' F' X - }
" Z; I% F' Q" U) @2 ]/ Y - } else if(upload.status == UPLOAD_FILE_WRITE){2 F: ~+ s3 i- T+ u
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
4 C( M, ~; H, G6 q+ b2 P - Update.printError(Serial);
& V8 J; b3 b6 A" ]& F4 | - }
% D0 n& u% W2 l4 U# ~ - } else if(upload.status == UPLOAD_FILE_END){& f0 e; E! d( ^) |5 {6 {
- if(Update.end(true)){6 ]1 x1 [ J! J1 \, _
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
2 f, H6 M. n! @$ ?8 E% m# L - } else {+ T2 m; U% v8 M, `- L0 o. F) T9 E
- Update.printError(Serial);5 M) k$ L9 P8 j; B" ?
- }
6 k9 J$ N ^9 j, V" k7 U- C0 M - Serial.setDebugOutput(false); F. _% j, Z" d
- }8 Q4 m" r- t8 @2 Q8 n8 E3 W
- yield();
8 F v. t" J" @6 o - });- J3 W( L9 _* h& H9 a
-
; J) ~- j6 O" D" B+ ^ - digitalWrite(2,0);
* K* p. h( E7 h: _- M - mainAction();/ }, |. i$ o4 D; ?
- if (digitalRead(0)){
# h) ]1 {0 L d3 V2 Z) ]" P - ESP.deepSleep(0);
1 Y* R% u" d" I D. M, c! V- { - } else {
2 J6 g, E# I/ F$ S - server.begin();
. `, y3 P* @. A1 o - }
4 V3 o" v0 y6 i3 s' ^; M; I% n - }8 m* a9 L2 `! s# o: g
- void loop() {
% ]! x. c! U) J! O - server.handleClient();
1 m" J, z1 R* R4 E8 k% G7 i - delay(1);' U% m- y9 m. z6 r& b- ~" ~2 M
- }+ [ t, y& _1 b, X" J* E* f
- String doGet(String url){* `1 N" c! ?; S
- if ((WiFiMulti.run() == WL_CONNECTED)) {# r( F( f7 d) L0 D0 q0 e
- HTTPClient http;5 D/ j ^+ Q: z" K
- Serial.println("[HTTP] begin...");: p! R0 L" m% H0 k
- if (url.startsWith("https")) {
( U" g/ k' s* F: j7 G! y5 I - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38"); E( s3 B2 i* d1 b
- } else {* c& p% l* T9 p
- http.begin(url);; U+ c9 N6 T. I1 k/ e
- }% ~; s; K9 q: C$ c) v
- Serial.println("[HTTP] GET...");) _2 e) n9 \& q* _4 h" i2 [
- int httpCode = http.GET();6 n, a8 k, P' ?3 W& j" S9 b4 h( G
- if (httpCode > 0) {
6 ?( f. S" v+ ?% O0 E - Serial.printf("[HTTP] code: %d\n", httpCode);
+ ?0 @& p. s: D5 n, D: n r - if (httpCode == HTTP_CODE_OK) {
) y. w# L1 {! d3 F9 E; k+ T - String payload = http.getString();' [: u! d; T2 r W/ ~
- Serial.println(payload);2 P0 n& b3 O$ z1 p* r! Q8 {; J
- Serial.print("\r\n");, s' Y, ^& f! a1 a _
- return payload;
+ s4 |5 |' i/ B+ R+ H( W0 b0 p% F/ ^ - }% w4 L: E* s# k: h
- } else {+ F* o; O' q8 z3 _
- Serial.printf("[HTTP] GET... failed, error: %s\n",/ x. b6 K7 {7 E) b/ A: r
- http.errorToString(httpCode).c_str());
M, ^7 w+ [! X - }
' e* R3 Z0 ?' I - http.end();
9 A$ V- U) ~! N0 { - return "";
- V6 s! }1 b8 O" D6 I - }
Z) o; t$ P7 G/ }- ^- B. j5 U5 H - }
0 E' `' ~7 V$ D, P) `/ S9 @3 ~- }7 `0 _, p - void mainAction() {
, E9 x! j* ]9 ?* N% z- }& z9 G Z - // 发送请求) Z/ K0 X" G& A6 w* u3 W6 L8 H
- doGet("http://google.cn");
a( u L5 ^( E8 B) A" V% K) X- ~ - }8 z% d% k! }: N, z1 E
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