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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)
: X8 `6 ?' \7 }4 j- #include <ESP8266HTTPClient.h>
. o' n- y: r, h( ~ - #include <ESP8266WiFi.h>2 C. m$ s* h. d; y
- #include <ESP8266WiFiMulti.h>% P- E ]) E0 C5 I% x9 h, A
- #include <ESP8266WebServer.h>& K' M. X9 y# \# K
- #include <arduino.h>( s9 Q- Q5 l7 p6 [
- ESP8266WiFiMulti WiFiMulti;
: P5 ?7 }! s- L; ` R - ESP8266WebServer server(80);1 I# \: `* p! a5 F
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
" k0 d5 c; d% h) m* d" z: [* b - ADC_MODE(ADC_VCC);
0 L! s7 F* x+ q& V - void setup() {
% t' C: B/ C$ _! u, }5 R% n - Serial.begin(115200);( f5 ?' h( H7 N8 ^1 ^9 n, W
- Serial.print("\r\n\n");
3 n5 F+ p$ C' h6 q2 _ - pinMode(2,OUTPUT);, K- h/ ]0 g2 i; [+ m% } |
- // WIFI
: y9 i/ j' _8 M8 l7 D - WiFi.mode(WIFI_STA);( r" m1 v. U4 V, ^/ _$ g
- WiFi.hostname("Sparkle");& E0 x* ~' n @( m
- WiFiMulti.addAP("wifi ssid", "wifi password");4 b& S, a6 x6 R/ w6 X; \7 W
- int tryNum = 15;
7 X: ?; c4 N- p% l - Serial.print("Connect WiFi");
. V; @( d+ Z7 h3 q - while (WiFiMulti.run() != WL_CONNECTED) {3 T3 W, @# v {) u; G
- digitalWrite(2,0); V9 T Z+ U r2 `2 F* h/ q
- delay(200);6 `7 A' @9 {+ l; v6 y5 ?$ u3 X
- digitalWrite(2,1);% r$ z$ R/ c! z
- delay(300);$ u( Y4 x* C" L( L5 ]
- Serial.print(".");
/ o. P( P/ T9 d8 V/ j0 k - tryNum--;
, _ q5 Q4 d8 V. N: I1 q - if (tryNum == 0) {, ~- ^1 Q4 k3 @! c. ^" @* r
- // 1min
" ~0 f9 }3 ? s* G - // ESP.deepSleep(60e6);: l" z. V6 }4 c
- ESP.deepSleep(0);+ }) \8 h O3 F6 o
- }
, h$ v/ T6 r B6 r - }& l# U z# B& o. L" u t
- Serial.print("\r\n");
: |9 T% _2 N" ` g" L - digitalWrite(2,1);
' H& `1 _# p( f1 _4 s8 ?, { - Serial.print("IP address : ");
4 y! N Q- O) N5 g5 m3 @ - Serial.println(WiFi.localIP());
$ r4 _2 G1 D7 b9 s' O) ?" W. U - server.on("/", HTTP_GET, [](){5 Y7 s' o8 u4 z$ ?$ P5 G0 d
- server.sendHeader("Connection", "close");
: J, o0 L& [4 J) ^; X# E' T% j, d- r, o$ y - server.send(200, "text/html", serverIndex);
3 A9 [5 S2 {8 I$ ~% B - });
: G/ X0 ~$ w4 E- B7 i - server.on("/update", HTTP_POST, [](){% j' W" @ [0 ^' R
- server.sendHeader("Connection", "close");
* s; e) @/ H+ u" r. i - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");+ J* Q @ J8 r4 r6 b$ s+ J
- ESP.restart();; ^ u$ ~/ x- j6 d
- },[](){! Q# K& c: Z9 I8 O) s. R
- HTTPUpload& upload = server.upload();4 r3 r4 Q- D7 N* e4 o; j
- if(upload.status == UPLOAD_FILE_START){
; b, W0 R2 F1 H - Serial.setDebugOutput(true);
+ Z/ b9 T) C# T6 u - Serial.printf("Update: %s\n", upload.filename.c_str());
$ {" Z% w- x; ?! j - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;" x$ \% Z5 T1 `. q5 z3 s
- if(!Update.begin(maxSketchSpace)){/ ?/ g; c+ V7 L( _
- Update.printError(Serial);
/ @8 g" m& \" N( s8 E; k& Q$ _) \ - }
; y. {& W* T/ ~. Q3 b - } else if(upload.status == UPLOAD_FILE_WRITE){
; m& a' d$ x( ?1 t! N- P" C$ v - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){* n7 o5 _$ Y5 h6 u4 j; K
- Update.printError(Serial);
) n; o* E- {7 A; z* A$ p& y - }7 B2 x% _" Y' v9 t2 H. C% v1 D
- } else if(upload.status == UPLOAD_FILE_END){1 L x/ [7 Z2 T0 m! x6 N( L0 [
- if(Update.end(true)){- K! a8 \* q9 _1 C* X1 e6 i$ C4 U
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);6 s1 o$ V2 p5 k, P" P: ?8 {- s
- } else {
" r0 h$ ~: V! u4 M - Update.printError(Serial);
, _. l# |! a, K9 z. j - }' B: o& V& p6 I( e
- Serial.setDebugOutput(false);
+ a* z7 t/ e1 x; D - }% F5 C- @' k0 Z
- yield();
4 K- _% ]. ~' L - });6 m2 d# \( x- }. q4 T
- 6 o. @2 O; u( L9 @
- digitalWrite(2,0);
6 Q3 ]9 W2 q0 D. R - mainAction();
, g2 Z- s0 f2 l3 m7 J) s - if (digitalRead(0)){
1 V+ Y1 e( d* J1 |: w6 b% P3 { - ESP.deepSleep(0);
' {% D8 Z s- c; i: F - } else { a0 `+ O6 G. o) {+ i# W. p2 i
- server.begin();( L; c3 o7 [( ]% z
- }
! z/ x' @! o' `9 m - }7 h, `3 Z4 s8 ?/ V
- void loop() {
/ M4 w9 Z: t# h2 h9 B - server.handleClient();
0 Q+ M" x. b: }+ [7 C - delay(1);- x0 N( r% E7 @- \
- }
' T9 N: B: P& m+ }" o4 V. ` - String doGet(String url){
6 B3 Y+ l8 v. O( S' m R- N) b' n: I1 W - if ((WiFiMulti.run() == WL_CONNECTED)) {
0 h" t" p7 k$ v+ r2 X - HTTPClient http;
+ J3 ?; a) a* C% E+ H4 y0 p0 H - Serial.println("[HTTP] begin...");
m& f" |9 S, X2 L3 w - if (url.startsWith("https")) {
0 n8 ~. L" ?+ U+ H/ R$ g - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");1 G8 V& l1 }' ?/ O: c- P0 |
- } else {& z; ?# ?! U9 @: k% X+ M( G2 _
- http.begin(url);
! K1 q# W% A+ @; u; o0 A - }
& Z- {# v) U$ M( D - Serial.println("[HTTP] GET...");
( Z7 g1 d1 u/ G$ {" S5 O* o0 J - int httpCode = http.GET();6 U5 L$ p4 ?2 k
- if (httpCode > 0) {
/ t- [9 _& \: ]7 B5 C - Serial.printf("[HTTP] code: %d\n", httpCode);
$ B* b' k, e/ }! z( t [ - if (httpCode == HTTP_CODE_OK) {: E& g! b) r) L0 n4 L2 R
- String payload = http.getString();
, z. n7 X7 ~6 C' ?! L7 E - Serial.println(payload);) f$ _6 _; m7 _
- Serial.print("\r\n");/ h- y& @7 F3 k- V
- return payload;. d6 @0 }. ^: n! v
- }" o/ f* B2 D5 m9 T0 `6 H2 x, S
- } else {
h$ h7 E/ ?3 q( ?8 | - Serial.printf("[HTTP] GET... failed, error: %s\n",
$ N. W# ]: m/ V* W; { W( e1 E - http.errorToString(httpCode).c_str());- ~6 }2 H# b B' F
- } z- {+ U6 I- A0 T/ y% O9 ~3 V# e
- http.end();/ ^9 q% w7 C% R# Y8 S) d, q
- return "";
5 |% a; D4 g4 Q/ |$ t" D - }8 o3 @0 {2 n% ~2 K/ m1 p, J
- }* {" }9 k0 i0 d$ ?
- void mainAction() {: P& J+ o s7 T
- // 发送请求
3 {% W. [7 c& R( ?/ o: Y - doGet("http://google.cn");- v$ {# J( ^) a4 V
- }. Q7 w A- a% X, T2 J' M3 e8 @
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